Bork v. Mills , 458 Pa. 228 ( 1974 )
american-cyanamid-company-a-corporation-of-the-state-of-maine-v-hammond , 495 F.2d 1183 ( 1974 )
Vivienne v. Walsh v. Schering-Plough Corp , 758 F.2d 889 ( 1985 )