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- [7] LECITHIN-SPHINGOMYELIN RATIO IN AMNIOTIC-FLUID OF DIABETIC MOTHERS - WARNING OF RESPIRATORY DISTRESS IN NEWBORN LANCET, 1973, 1 (7793): : 36 - 37
- [8] DETERMINATION OF LECITHIN-SPHINGOMYELIN RATIO IN AMNIOTIC-FLUID OBSTETRICS AND GYNECOLOGY, 1972, 40 (02): : 173 - +
- [9] AMNIOTIC-FLUID CELLS AND LECITHIN-SPHINGOMYELIN RATIO OBSTETRICS AND GYNECOLOGY, 1977, 49 (03): : 280 - 286