𝔖 Bobbio Scriptorium
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Prenatal development of the ethmoidal roof

✍ Scribed by Norberto Lopez Serna; Alfredo Nunez Castruita; Rodolfo Martinez Burckhardt; Jorge E Cruzponce


Book ID
117404258
Publisher
SAGE Publications
Year
1999
Tongue
English
Weight
107 KB
Volume
121
Category
Article
ISSN
0194-5998

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✍ Monteiro, Victor Jerome ;Dias, Maria Prisca πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 591 KB

## Background: The current teaching in regard to the development of paranasal sinuses is that they are evaginations of the nasal cavity; this seems to totally ignore earlier observations. ## Methods: Serial coronal sections of the heads of 23 human fetuses from 18-mm cr length to 282-mm cr length