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- [7] MODE OF DELIVERY AND THE LECITHIN-SPHINGOMYELIN RATIO BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1979, 86 (12): : 965 - 968
- [8] AMNIOTIC-FLUID LECITHIN-SPHINGOMYELIN RATIO IN PREGNANCY COMPLICATED BY DIABETES BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1977, 84 (04): : 294 - 299