TIERNEY WILLIAM M. 312,158 PROCEEDINGS Proceedings of the Fourth Biennial Regenstrief Conference : methods for comparing patterns of care, October 27-29, 1991 / guest eds William M. Tierney and Barry P. Katz. - Philadelphia : Publ. by J.B. Lippincott Co., 1993. - [2], 114 s. ; wykr. ; 25 cm (Medical Care, ISSN 0025-7079 , vol. 31, no 5, suppl.)