Nr 231 - Diabetes, Proceedings of the Seventh Congress of the Intemat«Diabetes Federation. 1971 ; Nr 232 - New Concepts in allergy and clinical immunology. 1971 ; Nr 233 - 4 e Congr'es International de Genetique Humaine Paris, 6-11. 1971.
Card's contents:
521,133 Nr 231 - Diabetes, Proceedings of the Seventh Congress of the Intemat. Diabetes Federation. 1971 521,132 Nr 232 - New Concepts in allergy and clinical immunology. 1971 516,563 Nr 233 - 4 e Congr'es International de Genetique Humaine Paris, 6-11. 1971.