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Collins, P.; Billett, F. S. (1995). "The terminology of early development: History, concepts, and current usage". Clinical Anatomy. 8 (6): 418–425. doi:10.1002/ca.980080610. PMID8713164. S2CID23450709.
Collins, P.; Billett, F. S. (1995). "The terminology of early development: History, concepts, and current usage". Clinical Anatomy. 8 (6): 418–425. doi:10.1002/ca.980080610. PMID8713164. S2CID23450709.
Weyers, Wolfgang (2002). 150 Years of cell division. Dermatopathology: Practical & Conceptual, Vol. 8, No. 2. linkArchived 2019-04-02 at the Wayback Machine.