Gerard, A [Malabsorption. Lactase insufficiency in adults]. [electronic resource] - Lille medical : journal de la Faculte de medecine et de pharmacie de l'Universite de Lille - 880-4 p. digital Publication Type: Journal Article ISSN: 0024-3507 Subjects--Topical Terms: AdultEthnicityHumansLactose Intolerance--diagnosis