U Möhle, M Heistermann, J Dittami, B Wallner, and JK Hodges
(2005)
Patterns of anogenital swelling size and their endocrine correlates during ovulatory cycles and early pregnancy in free-ranging Barbary macaques (Macaca sylvanus) of Gibraltar.
Am J Primatol , 66:351-368. ISI Impact: 2.129.