TY - RPRT TI - Recent developments in the maytansinoid antitumor agents. AU - John M Cassady AU - Kenneth K Chan AU - Heinz G Floss AU - Eckhard Leistner PY - 2004 DO - 10.1248/cpb.52.1 UR - https://pubmed.ncbi.nlm.nih.gov/14709862/ ID - 14709862 ER -