Stewart; Bhatia; McCarty; Patel; Staeger; Arendsen; Gunawardana; Melcher; Zhu; Boyd; Fry; Cool; Kiflie; Lartey; Marsh; Kempf-Grote; Kilgannon; Wisdom; Meyer; Gallatin; Okasinskit Journal of Medicinal Chemistry, 2001 , vol. 44, # 6 p. 988 - 1002