The appearance and development of fetal heart activity in the early human pregnancy
Schats, R., Brandsma, G., Cleveringa, L.M., Lankhorst, P.F.C., Vroegop, I.S., Jansen, C.A.M.Volume:
32
Language:
english
Journal:
European Journal of Obstetrics & Gynecology and Reproductive Biology
DOI:
10.1016/0028-2243(89)90127-5
Date:
July, 1989
File:
PDF, 146 KB
english, 1989