TY - BOOK AU - Beers,Donald O. TI - Generic and innovator drugs: a guide to FDA approval requirements SN - 0735576637 AV - KF 3894 .G45 B443 2008 PY - 2008/// CY - Frederick PB - Aspen Publ. Inc. KW - Drugs KW - Generic substitution KW - Law and legislation KW - United States KW - Local KW - Patent extensions KW - Patents ER -