Nadia Badawi, Louisa M Alessandri, Jennifer J Kurinczuk, Paul R Burton, Fiona J Stanley, Patrick J Pemberton et al
Badawi N, Alessandri L M, Kurinczuk J J, Burton P R, Stanley F J, Pemberton P J et al.
Authors' reply
BMJ 1996; 312 :580
doi:10.1136/bmj.312.7030.580b