TI - THe rh blood groups and their clinical effects. PT - JOUR DP - 1949 TA - Archives of Internal Medicine pages = {840}, VI - 84 IP - 5 AID - 10.1001/archinte.1949.00230050176013 [doi] 4100 - http://dx.doi.org/10.1001/archinte.1949.00230050176013 SO - Archives of Internal Medicine November 1, 1949 84(5):840