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Prenatal fetal electrocardiography
Bernstine, Richard L., Borkowski, Winslow J.Volume:
70
Language:
english
Journal:
American Journal of Obstetrics and Gynecology
DOI:
10.1016/0002-9378(55)90358-6
Date:
September, 1955
File:
PDF, 525 KB
english, 1955