RT Journal Article SR Electronic T1 Abnormal distribution of ABO blood groups in infantile pyloric stenosis. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 468 OP 470 DO 10.1136/jmg.8.4.468 VO 8 IS 4 A1 J A Dodge YR 1971 UL http://jmg.bmj.com/content/8/4/468.abstract AB