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First trimester fetal heart rate measurements by transvaginal ultrasound combined with pulsed Doppler: an evaluation of 1331 cases
Elif Gül Yapar, Eyüp Ekici, Oya GökmenVolume:
60
Year:
1995
Language:
english
DOI:
10.1016/0028-2243(95)02091-6
File:
PDF, 433 KB
english, 1995