RT Journal Article SR Electronic T1 Further observations on the Birmingham chimaera. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 70 OP 71 DO 10.1136/jmg.13.1.70 VO 13 IS 1 A1 Bird, G W A1 Battey, D A A1 Greenwell, P A1 Mortimer, C W A1 Watkins, W M A1 Wingham, J YR 1976 UL http://jmg.bmj.com/content/13/1/70.abstract AB The appropriate ABH-gene specified glycosyltransferases in the plasma of the Birmingham chimaera were estimated. These observatiions and the demonstration of A1Leb blood group specific glycosphingolipid in the plasma indicate that the minority population of red blood cells probably represents the true blood groups of the patient.