Template:Ref-O'Connor1940a
From Embryology
An experimental study of the development of the amphibian cloaca. O'Connor RJ. J Anat. 1940 Apr;74(Pt 3):301-308.1. PMID: 17104815
An experimental study of the development of the amphibian cloaca. O'Connor RJ. J Anat. 1940 Apr;74(Pt 3):301-308.1. PMID: 17104815