View source for Paper - Information regarding the time of human ovulation derived from a study of 3 unfertilized and 11 fertilized ova

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|[[File:Mark_Hill.jpg|50px|left]] This historic 1941 paper describes early human development in week 2. Draft only.
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See also: {{Ref-RockHertig1941}}

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'''Links:''' [[Carnegie stage 5]] | [[Week 2]]
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=Some Aspects of Early Human Development=
[[File:John Rock.jpg|thumb|200px|link=Embryology History - Arthur Hertig#John Rock|alt=John Charles Rock|John Charles Rock (1890-1984)]]
[[File:Arthur Hertig.jpg|thumb|200px|alt=Arthur T Hertig|link=Embryology History - Arthur Hertig|Arthur Tremain Hertig (1904-1990)]]

[[Embryology History - Arthur Hertig#John Rock|John Rock]] and [[Embryology History - Arthur Hertig|Arthur T . Hertig]]


Free Hospital for Women, Brookline, Mass., Departments of Pathology, Obstetrics and Gynecology, Harvard Medical School and Department of Embryology, Carnegie Institution of Washington.


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[[Category:Draft]]