Development of a class of selective cholecystokinin type B receptor antagonists having potent anxiolytic activity. - Hughes,J.; Boden,P.; Costall,B.; Domeney,A.; Kelly,E.; Horwell,D.C.; Hunter,J.C.; Pinnock,R.D.; Woodruff,G.N. (Proc Natl Acad Sci USA, 1990)