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- [28] METHOD FOR DETERMINATION OF LECITHIN-SPHINGOMYELIN RATIO IN AMNIOTIC-FLUID ARCHIV FUR GYNAKOLOGIE, 1975, 218 (03): : 169 - 171
- [29] SIGNIFICANCE OF A LOW AMNIOTIC-FLUID CREATININE AND A MATURE LECITHIN-SPHINGOMYELIN RATIO BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1978, 85 (03): : 201 - 203
- [30] COMPARISON OF FETAL MATURITY EVALUATION WITH ULTRASONIC BIPARIETAL DIAMETER AND AMNIOTIC-FLUID LECITHIN-SPHINGOMYELIN RATIO OBSTETRICS AND GYNECOLOGY, 1978, 51 (01): : 109 - 111