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- [6] SEASONAL VARIATION IN CONGENITAL CEREBRAL PALSY DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY, 1967, 9 (06): : 673 - +
- [8] STUDY OF SEASONAL INCIDENCE OF CONGENITAL MALFORMATIONS IN UNITED-STATES BRITISH JOURNAL OF PREVENTIVE & SOCIAL MEDICINE, 1970, 24 (01): : 24 - +
- [9] SEASONAL VARIATION OF CONGENITAL HYPERTROPHIC PYLORIC STENOSIS JOURNAL OF PEDIATRICS, 1967, 70 (06): : 963 - +