by Dennis, V C, Britton, M L, Sirmans, S M, Letassy, N A, Freeman, D A
Published in The Annals of pharmacotherapy (01.06.1997)

by Thompson, D F, Letassy, N A, Thompson, G D
Published in Drug intelligence & clinical pharmacy (01.12.1988)

by Letassy, N A, Thompson, D F, Britton, M L, Suda, Sr, R R
Published in DICP (Cincinnati, Ohio) (01.12.1990)