共 50 条
- [23] THE STANDARDIZATION OF INFECTIVITY TITRATIONS OF POLIOVACCINES - A WHO COLLABORATIVE STUDY JOURNAL OF BIOLOGICAL STANDARDIZATION, 1985, 13 (02): : 159 - 166
- [26] A STUDY OF BREAST-FEEDING IN A MINING TOWN BRITISH MEDICAL JOURNAL, 1948, 2 (4577): : 597 - 599
- [27] A STUDY OF MOTHERS BREAST-FEEDING CONCERNS BIRTH-ISSUES IN PERINATAL CARE, 1986, 13 (02): : 104 - 108
- [29] A preliminary report of the study of breast feeding in Minneapolis AMERICAN JOURNAL OF DISEASES OF CHILDREN, 1921, 21 (05): : 455 - 464
- [30] STUDY ON BREAST FEEDING IN NEONATAL PEDIATRIC CENTER MINERVA PEDIATRICA, 1979, 31 (16) : 1209 - 1212