Controlled trial in dental and medical insurance.
Newhouse JP, Spolsky V, Feldman B, Messing S, Black A, Goldberg G, Brook R, Bailit HL.
Newhouse JP, et al.
J Am Dent Assoc. 1983 Feb;106(2):173-7. doi: 10.14219/jada.archive.1983.0384.
J Am Dent Assoc. 1983.
PMID: 6403604
No abstract available.