RT Journal Article SR Electronic T1 Harold Cummins (1894--1976). JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 540 OP 540 DO 10.1136/jmg.13.6.540 VO 13 IS 6 A1 Holt, S B YR 1976 UL http://jmg.bmj.com/content/13/6/540.abstract AB