MATERNAL-FETAL MEDICINE: Edited by James F. Smith Jr.
Acosta, Colleen D.; Knight, Marian
National Perinatal Epidemiology Unit, University of Oxford, UK
Correspondence to Colleen D. Acosta, MPH, National Perinatal Epidemiology Unit, University of Oxford, Old Road Campus, Oxford OX3 7LF, UK. Tel: +44 1 865 289 421; fax: +44 1 865 289 701; e-mail: [email protected]