RT Journal A1 Wehrmacher WH T1 SPecial review JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1968 FD July 1 VO 122 IS 1 SP 92 OP 93 DO 10.1001/archinte.1968.00300060094042 UL http://dx.doi.org/10.1001/archinte.1968.00300060094042 AB