The financial implications of availability and quality of a usual source of care for children with special health care needs
Maternal and Child Health Journal
http://www.ncbi.nlm.nih.gov/pubmed/?term=The%20financial%20implications%20of%20availability%20and%20quality%20of%20a%20usual%20source%20of%20care%20for%20children%20with%20special%20health%20care%20needs.