共 50 条
- [41] Use of pulsed Doppler ultrasound in 1st trimester uncomplicated pregnancy: Is there reason for concern? Ultrasound in Medicine and Biology, 2000, 26 (SUPPL. 2):
- [42] THE RELATION OF ASPIRIN USE DURING THE 1ST TRIMESTER OF PREGNANCY TO CONGENITAL CARDIAC DEFECTS NEW ENGLAND JOURNAL OF MEDICINE, 1989, 321 (24): : 1639 - 1642
- [44] ULTRASONIC ASSESSMENT OF COMPLICATIONS DURING 1ST TRIMESTER OF PREGNANCY LANCET, 1987, 2 (8570): : 1237 - 1240
- [45] ANTENATAL DIAGNOSIS OF HEMOPHILIA-A IN THE 1ST TRIMESTER OF PREGNANCY PRESSE MEDICALE, 1986, 15 (10): : 484 - 484
- [47] ADVERSE-EFFECTS OF DRUGS IN THE 1ST TRIMESTER OF PREGNANCY CLINICS IN OBSTETRICS AND GYNAECOLOGY, 1986, 13 (02): : 177 - 195
- [48] MATERNAL SERUM AFP LEVELS IN THE 1ST TRIMESTER OF PREGNANCY EUROPEAN JOURNAL OF OBSTETRICS GYNECOLOGY AND REPRODUCTIVE BIOLOGY, 1989, 30 (02): : 123 - 128
- [50] SELECTIVE TERMINATION IN QUINTUPLET PREGNANCY DURING 1ST TRIMESTER LANCET, 1986, 1 (8495): : 1447 - 1447