4,421,920 A 12/1983 Baudouin et al. ........... 546/163 5,154,924 A 10/1992 Friden .............. 424/85.91 5,210,076 A 5/1993 Berliner et al. ............... 514/21 5,430,039 A 7/1995 Roberts-Lewis et al. .... 514/297 5,596,002 A 1/1997 Hofheinz et al. ........... 514/313 5,624,938 A 4/1997 Pernis .............. ... 514/313 5,639,737 A 6/1997 Rubin ......................... 514/53 5,736,556. A...