RT Journal Article SR Electronic T1 Fetal and embryonic haemoglobins. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 50 OP 64 DO 10.1136/jmg.10.1.50 VO 10 IS 1 A1 Lorkin, P A YR 1973 UL http://jmg.bmj.com/content/10/1/50.abstract AB