TI - COllected papers of the mayo clinic and the mayo foundation. PT - JOUR DP - 1944 TA - Archives of Internal Medicine pages = {80}, VI - 74 IP - 1 AID - 10.1001/archinte.1944.00210190088013 [doi] 4100 - http://dx.doi.org/10.1001/archinte.1944.00210190088013 SO - Archives of Internal Medicine July 1, 1944 74(1):80