1. Hepatitis B surface antigen and its subtypes in an institution for the mentally retarded;Perry;Can. Med. Assoc. J.,1975
2. Hepatitis B surface antigen and antibody: prevalence and persistence in institutionalized and non-institutionalized persons;McMillan;Public Health Rep.,1979
3. Hepatitis B infection in institutionalized Down's syndrome inmates: a longitudinal study with five hepatitis B virus markers;Hawkes;Clin. Exp. Immunol.,1980
4. Down's syndrome and hepatitis: an evaluation of carrier status;Dicks;J. Am. Dent. Assoc.,1987
5. Hepatitis B infection in the residential mentally handicapped population;Lyons;Ir. Med. J.,1987