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- [9] INTESTINAL LACTASE DEFICIENCY AMONG EAST INDIANS - AN ADAPTIVE RATHER THAN A GENETICALLY INHERITED PHENOMENON AMERICAN JOURNAL OF GASTROENTEROLOGY, 1970, 53 (03): : 246 - &
- [10] LACTASE DEFICIENCY IN NIGERIANS AMERICAN JOURNAL OF DIGESTIVE DISEASES, 1971, 16 (10): : 909 - +