RT Journal Article SR Electronic T1 The Nature of the Determinants of Rhesus Isoimmunization JF British Journal of Preventive & Social Medicine JO Br J Prev Soc Med FD BMJ Publishing Group Ltd SP 126 OP 130 DO 10.1136/jech.11.3.126 VO 11 IS 3 A1 Knox, George A1 Walker, William YR 1957 UL http://jech.bmj.com/content/11/3/126.abstract AB