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- [6] AMNIOTIC-FLUID AND FETAL MATURITY REVUE FRANCAISE DE GYNECOLOGIE ET D OBSTETRIQUE, 1972, 67 (12): : 699 - 706
- [7] PROTEINASE ACTIVITY OF AMNIOTIC-FLUID AND FETAL LUNG MATURITY JOURNAL OF CLINICAL CHEMISTRY AND CLINICAL BIOCHEMISTRY, 1980, 18 (10): : 749 - 749