Marquis, Robert W.; Lago, Amparo M.; Callahan, James F.; Rahman, Attiq; Dong, Xiaoyang; Stroup, George B.; Hoffman, Sandra; Gowen, Maxine; DelMar, Eric G.; Van Wagenen, Bradford C.; Logan, Sarah; Shimizu, Scott; Fox, John; Nemeth, Edward F.; Roethke, Theresa; Smith, Brian R.; Ward, Keith W.; Bhatnagar, Pradip Journal of Medicinal Chemistry, 2009 , vol. 52, # 21 p. 6599 - 6605