RT Journal Article SR Electronic T1 Interpretation of rubella serology in pregnancy—pitfalls and problems JF BMJ JO BMJ FD British Medical Journal Publishing Group SP 147 OP 148 DO 10.1136/bmj.325.7356.147 VO 325 IS 7356 A1 Best, Jennifer M A1 O'Shea, Siobhan A1 Tipples, Graham A1 Davies, Nicholas A1 Al-Khusaiby, Saleh M A1 Krause, Amanda A1 Hesketh, Louise M A1 Jin, Li A1 Enders, Gisela YR 2002 UL http://www.bmj.com/content/325/7356/147.abstract AB