1. Immunisation status amongst children attending special schools;Tuffrey;Ambul. Child Health,2001
2. Vaccinations and the physically handicapped child;Tervo;Can. Med. J.,1982
3. Prevalence of children with disabilities in central region, Ghana;Biritwun;West Afr. J.,2001
4. Missed immunization opportunities at urban health facilities;Gindler,1993
5. Reducing missed opportunities to vaccinate during child health visits. How effective are parent education and case management;Wood;Arch. Pediatr. Adolsc. Med.,1998