Approved drug products with therapeutic equivalence evaluations [elektronický zdroj] .   .  [Rockville, Md.] : Washington, D.C. :  U.S. Dept. of Health and Human Services, Public Health Service, Food and Drug Administration, Center for Drugs and Biologics ; For sale by the Supt. of Docs., U.S. G.P.O.,  1985- . v.