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An opening of sphenoidal sinus forms a passage between each sphenoidal sinus, and the nasal cavity. Posteriorly, an opening of sphenoidal sinus opens into the sphenoidal sinus by an aperture high on the anterior wall the sinus; anteriorly, an opening of sphenoidal sinus opens into the roof of the
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can be surgically approached through the roof of the nasal cavities by first passing through the anterioinferior aspect of the sphenoid bone and into the sinuses, followed by entry through the top of the sphenoid bone into the hypophyseal fossa.
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protrudation into the sphenoid sinus wall was present 23.9-32.1% in males and 35.5-36.2% in females, dehiscence in carotid canal was detected more in females (34%) compared to males (22%),
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prior to surgery may put these structures at risk. One study found that an Onodi cell was present 26.6% and 19.1% in males and females, respectively.
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On average, a sphenoid sinus measures 2.2 cm vertical height, 2 cm in transverse breadth; and 2.2 cm antero-posterior depth.
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An endonasal surgical procedure called a sphenoidotomy may be carried out to enlarge the sphenoid sinus, usually in order to drain it.
181:. The pair of sphenoid sinuses are separated in the middle by a septum of sphenoid sinuses. Each sphenoid sinus communicates with the
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protrudation was 33.3 and 30.5% in males and females, and optic canal dehiscence was detected 11.3 and 9.9% in males and females.
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Lateral wall of nasal cavity; the three nasal conchæ have been removed. (Sphenoidal sinus visible at upper right, in dark circle.)
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The septum of the sphenoidal sinuses may be partially or completely absent. Additional incomplete septa may also be present.
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426:. Onodi cells typically extend posteriorly to lie superolateral to the sphenoid sinus and thus in close proximity to the
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212:. The two sphenoid sinuses are separated medially by the septum of sphenoidal sinuses (which is usually asymmetrical).
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via the opening of sphenoidal sinus. The two sphenoid sinuses vary in size and shape, and are usually asymmetrical.
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Asal, Neşe; Bayar Muluk, Nuray; Inal, Mikail; Şahan, Mehmet Hamdi; Doğan, Adil; Arıkan, Osman Kürşat (June 2019).
528:. Friedrich Paulsen, Tobias M. Böckers, J. Waschke, Stephan Winkler, Katja Dalkowski, Jörg Mair. Amsterdam. 2018.
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The sphenoid sinuses vary in size and shape, and, owing to the lateral displacement of the intervening
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Because only thin shelves of bone separate the sphenoidal sinuses from the nasal cavities below and
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The sphenoid sinuses cannot be palpated on physical examination. However, patients with isolated
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The sphenoidal sinuses are minute at birth; their main development takes place after puberty.
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Illustrated
Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 64
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Knowledge articles incorporating text from the 20th edition of Gray's
Anatomy (1918)
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When exceptionally large, the sphenoid sinuses may extend into the roots of the
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814:"Sphenoethmoidal air cell | Radiology Reference Article | Radiopaedia.org"
621:. K. Bo Foreman, Kurt H. Albertine (2nd ed.). New York. p. 246.
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If a fast-growing tumor erodes the floor of the sphenoidal sinus, the
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Nose and nasal cavities. (Sphenoid sinus labeled at upper right.)
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at The
Anatomy Lesson by Wesley Norman (Georgetown University) (
2019:
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Kozłowski, Z; Mazerant, M; Skóra, W; Dabrowska, K (2008). "".
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Of note, the sphenoid sinus should be distinguished from an
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The mucous membrane receives sensory innervation from the
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nasal cavity via an aperture on the posterior wall of the
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could be in danger. If the tumor spreads laterally, the
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412:and all its constituent nerves could be in danger.
779:Otolaryngologia Polska = the Polish Otolaryngology
725:Ishak, NL; Subha, ST; Abu Bakar, S (2019-04-30).
669:"Carotid canal and optic canal at sphenoid sinus"
422:, an anatomic variant that is the posterior-most
169:is a paired paranasal sinus occurring within the
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1477:in petrous part, but not part of temporal bone)
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605:Human Anatomy, Jacob, Elsevier, 2008, page 211
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727:"Isolated sphenoid sinusitis: A big headache"
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336:of sphenoid sinuses, are rarely symmetrical.
177:. It represents one pair of the four paired
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204:Each spehoid sinus is contained within the
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649:: CS1 maint: location missing publisher (
556:: CS1 maint: location missing publisher (
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434:. Failure to recognize an Onodi cell on
382:or vertex headache, retro-orbital pain,
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27:One of the four paired paranasal sinuses
393:A potential complication of sphenoidal
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475:This article incorporates text in the
208:, being situated just inferior to the
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843:at the SUNY Downstate Medical Center
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590:(20th ed.). pp. 998–999.
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288:Proximal structures include: the
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982:Internal occipital protuberance
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618:The Big Picture: Gross Anatomy
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345:greater wings of sphenoid bone
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75:, and orbital branches of the
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791:10.1016/S0030-6657(08)70319-6
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220:(occurring just superior the
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1547:Posterior clinoid processes
992:Groove for transverse sinus
483:of the 20th edition of
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2277:Bones of the head and neck
731:Malaysian Family Physician
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399:cavernous sinus thrombosis
73:Posterior ethmoidal nerves
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615:Morton, David A. (2019).
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987:Internal occipital crest
938:External occipital crest
841:Anatomy photo:33:st-0712
525:Sobotta anatomy textbook
314:anterior ethmoidal cells
271:pterygopalatine ganglion
149:Anatomical terms of bone
77:pterygopalatine ganglion
2207:Salpingopharyngeal fold
1650:Sulcus of auditory tube
448:Transsphenoidal surgery
442:Transsphenoidal surgery
432:internal carotid artery
316:. One study found that
298:internal carotid artery
244:), and branches of the
2094:Ethmoidal infundibulum
2079:Sphenoethmoidal recess
1564:Middle clinoid process
238:ophthalmic nerve (CN V
218:sphenoethmoidal recess
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2212:Salpingopalatine fold
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2045:Superior nasal concha
1841:Superior nasal concha
1321:Petrotympanic fissure
560:) CS1 maint: others (
370:Clinical significance
347:, and may invade the
246:maxillary nerve (CN V
206:body of sphenoid bone
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2040:Supreme nasal concha
1836:Supreme nasal concha
1468:Petrosquamous suture
1424:Stylomastoid foramen
1311:Suprameatal triangle
1203:Supraorbital foramen
673:Neurosurgical Review
584:Gray, Henry (1918).
328:Anatomical variation
284:Anatomical relations
2287:Otorhinolaryngology
2050:Middle nasal concha
1851:Middle nasal concha
1804:Perpendicular plate
1645:Infratemporal crest
1186:Superciliary arches
1064:Pharyngeal tubercle
341:pterygoid processes
2170:Sphenoidal sinuses
1879:ethmoidal foramina
1797:Olfactory foramina
1758:Sphenoidal conchae
1595:Sphenoidal sinuses
1587:Sphenoidal lingula
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977:Cruciform eminence
424:ethmoidal air cell
376:sphenoid sinusitis
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1537:Tuberculum sellae
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1495:Suprameatal spine
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1419:Cochlear aqueduct
1326:Zygomatic process
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1220:Zygomatic process
1119:Parietal eminence
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1029:Hypoglossal canal
812:Gaillard, Frank.
628:978-1-259-86264-9
535:978-0-7206-7617-4
454:hypophyseal fossa
386:, drowsiness, or
197:Paranasal sinuses
179:paranasal sinuses
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16:(Redirected from
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2099:Semilunar hiatus
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1569:Petrosal process
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1434:Subarcuate fossa
1364:Occipital groove
1316:Mandibular fossa
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1275:Frontonasal duct
1176:Frontal eminence
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155:edit on Wikidata
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679:(2): 519–529.
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587:Gray's Anatomy
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486:Gray's Anatomy
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446:Main article:
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256:Postganglionic
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2100:
2097:
2095:
2092:
2090:
2087:
2085:
2084:Ethmoid bulla
2082:
2080:
2077:
2076:
2072:
2069:
2066:
2063:
2060:
2059:
2056:
2053:
2051:
2048:
2046:
2043:
2041:
2037:
2036:Nasal conchae
2034:
2033:
2031:
2027:
2021:
2018:
2016:
2013:
2011:
2008:
2007:
2005:
2001:
1998:
1996:
1992:
1984:
1981:
1979:
1976:
1974:
1971:
1969:
1968:Lateral nasal
1966:
1964:
1961:
1960:
1959:
1958:
1954:
1952:
1949:
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1946:
1944:External nose
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1938:
1931:
1926:
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1912:
1911:
1908:
1890:
1887:
1885:
1882:
1881:
1880:
1877:
1875:
1874:Ethmoid sinus
1872:
1871:
1869:
1867:
1863:
1857:
1856:Middle meatus
1854:
1852:
1849:
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1834:
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1532:Dorsum sellae
1530:
1529:
1528:
1527:Sella turcica
1525:
1522:
1521:
1519:
1515:
1512:
1510:
1506:
1496:
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1488:
1487:Tympanic part
1484:
1478:
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1471:
1469:
1466:
1464:
1461:
1457:
1454:
1452:
1449:
1448:
1447:
1444:
1440:
1439:Jugular fossa
1437:
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1430:
1427:
1425:
1422:
1420:
1417:
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1412:
1408:
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1404:
1403:
1400:
1398:
1397:Carotid canal
1395:
1394:
1392:
1390:
1386:
1379:
1375:
1372:
1370:
1367:
1365:
1362:
1360:
1359:Mastoid notch
1357:
1354:
1353:Mastoid cells
1350:
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1333:
1327:
1324:
1322:
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1309:
1307:
1304:
1303:
1301:
1299:
1298:Squamous part
1295:
1292:
1290:
1286:
1276:
1273:
1271:
1270:Frontal sinus
1268:
1266:
1263:
1261:
1258:
1256:
1253:
1252:
1250:
1248:
1244:
1236:
1235:Frontal crest
1233:
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1227:
1226:
1223:
1221:
1218:
1214:
1213:Foramen cecum
1211:
1209:
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1199:
1196:
1192:
1189:
1187:
1184:
1183:
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1174:
1172:
1169:
1168:
1166:
1164:
1163:Squamous part
1160:
1157:
1155:
1151:
1145:
1142:
1140:
1139:Sagittal keel
1137:
1135:
1132:
1130:
1127:
1125:
1124:Temporal line
1122:
1120:
1117:
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1009:
1007:
1005:
1004:Lateral parts
1001:
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985:
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949:
946:
944:
941:
939:
936:
934:
933:Occipital bun
931:
929:
925:
922:
921:
920:
917:
916:
914:
912:
911:Squamous part
908:
905:
903:
899:
895:
891:
884:
879:
877:
872:
870:
865:
864:
861:
854:
853:
852:latnasalwall3
848:
845:
842:
839:
838:
819:
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773:
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494:
491:
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487:
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478:
477:public domain
462:
459:
455:
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439:
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429:
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421:
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411:
407:
402:
400:
396:
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389:
385:
381:
377:
367:
359:
356:
354:
350:
346:
342:
337:
335:
325:
323:
319:
318:carotid canal
315:
311:
307:
303:
299:
295:
291:
281:
279:
276:
272:
268:
264:
260:
257:
253:
251:
243:
235:
225:
223:
219:
213:
211:
210:sella turcica
207:
202:
195:
186:
184:
180:
176:
175:sphenoid bone
172:
168:
156:
150:
146:
143:
140:
138:
134:
131:
128:
126:
122:
119:
116:
114:
110:
107:
104:
102:
98:
95:
92:
90:
86:
81:
78:
74:
71:
69:
65:
60:
53:
48:
41:
36:
31:
19:
2135:Nasal mucosa
2120:Nasal septum
2062:Nasal meatus
2029:Lateral wall
1995:Nasal cavity
1963:Septal nasal
1955:
1878:
1832:
1819:
1792:Crista galli
1714:
1697:
1612:
1591:
1578:
1523:
1472:
1445:
1428:
1402:Facial canal
1389:Petrous part
1336:Mastoid part
1247:Orbital part
1224:
1197:
1180:
1056:Basilar part
1033:
971:
954:
943:Nuchal lines
918:
890:Neurocranium
850:
821:. Retrieved
817:
807:
785:(5): 582–6.
782:
778:
737:(1): 29–30.
734:
730:
676:
672:
617:
610:
586:
524:
488:
474:
468:
451:
417:
414:
406:vidian nerve
403:
392:
373:
365:
357:
349:basilar part
338:
331:
287:
263:facial nerve
254:
231:
214:
203:
200:
183:nasal cavity
166:
164:
118:A06.1.03.003
93:
2113:Medial wall
1983:Vomeronasal
1951:Ala of nose
1678:Optic canal
1660:Small wings
1605:Great wings
818:Radiopaedia
456:above, the
428:optic nerve
362:Development
322:optic canal
294:optic nerve
290:optic canal
228:Innervation
83:Identifiers
2266:Categories
2089:Agger nasi
2064:: (Supreme
1978:Minor alar
1973:Major alar
1446:canaliculi
1208:Brow ridge
823:2023-11-12
637:1044772257
544:1082911887
465:References
420:Onodi cell
388:meningitis
312:, and the
2282:Rhinology
2073:inferior)
1884:Posterior
1866:Labyrinth
1703:Pterygoid
1690:processes
1688:Pterygoid
1095:Opisthion
960:Occipital
902:Occipital
743:1985-207X
693:1437-2320
645:cite book
552:cite book
395:sinusitis
380:occipital
278:secretion
189:Structure
2067:superior
2003:Openings
1889:Anterior
1813:Surfaces
1708:Scaphoid
1633:Spinosum
1618:Rotundum
1613:foramina
1517:Surfaces
1509:Sphenoid
1475:ossicles
1289:Temporal
1225:internal
1198:foramina
1191:Glabella
1181:external
1111:Parietal
972:internal
919:external
799:19004262
761:31289629
709:49331277
701:29926302
481:page 998
273:control
267:synapsed
2256:Anatomy
2194:pharynx
2015:Nostril
1772:Ethmoid
1737:Hamulus
1720:Lateral
1628:Vesalii
1473:(note:
1456:Mastoid
1154:Frontal
1034:jugular
1012:Condyle
892:of the
847:lesson9
752:6612268
436:CT scan
384:otalgia
351:of the
269:at the
173:of the
106:D013101
62:Details
2242:Portal
2070:middle
2020:Choana
1780:Plates
1725:Medial
1698:fossae
1574:Clivus
1429:fossae
1407:Hiatus
1378:Aditus
1090:Basion
1069:Clivus
965:Nuchal
955:planes
797:
759:
749:
741:
707:
699:
691:
635:
625:
542:
532:
489:(1918)
334:septum
222:choana
1746:Other
1640:Spine
1623:Ovale
1078:Other
924:Inion
894:skull
705:S2CID
479:from
275:mucus
265:that
153:[
142:54683
89:Latin
68:Nerve
2190:Naso
1753:Body
795:PMID
757:PMID
739:ISSN
697:PMID
689:ISSN
651:link
633:OCLC
623:ISBN
562:link
558:link
540:OCLC
530:ISBN
430:and
292:and
171:body
165:The
130:3178
113:TA98
101:MeSH
787:doi
747:PMC
681:doi
397:is
343:or
224:).
137:FMA
125:TA2
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