Prevalence and incidence of health problems in people with intellectual disability

van Schrojenstein Lantman-de Valk HM, van den Akker M, Maaskant MA, Haveman MJ, Urlings HF, Kessels AG, Crebolder HF. Prevalence and incidence of health problems in people with intellectual disability. J Intellect Disabil Res. 1997; 41(Pt 1): 42-51.