RT Journal Article SR Electronic T1 Population prevalence and estimated birth incidence and mortality rate for people with Prader-Willi syndrome in one UK Health Region JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 792 OP 798 DO 10.1136/jmg.38.11.792 VO 38 IS 11 A1 Whittington, J E A1 Holland, A J A1 Webb, T A1 Butler, J A1 Clarke, D A1 Boer, H YR 2001 UL http://jmg.bmj.com/content/38/11/792.abstract AB