Template:Ref-ParkesBellerby1927
From Embryology
Parkes AS. and Bellerby CW. Studies on the internal secretions of the ovary: IV. The significance of the occurrence of œstrin in the placenta. (1927) J Physiol. 62(4): 385–396. doi: 10.1113/jphysiol.1927.sp002368 PMCID: PMC1514981
