The origin of the blood of the ‘placental sign’

Journal of Comparative and Physiological Psychology,1949, 引用: 17

Anatomical Record-advances in Integrative Anatomy and Evolutionary Biology,1943, 引用: 8

American Journal of Anatomy,1966, 引用: 34

Acta Zoologica,1969, 引用: 12

The Anatomical Record,1932, 引用: 3

JAMA,1954, 引用: 50

British Journal of Obstetrics and Gynaecology,1948, 引用: 19

The Anatomical Record,1939, 引用: 9