Symposium Series on the Socioeconomic 555,631 Aspects of Drug Therapy Innovation ; 4 Gene therapy : socioeconomic and ethical issues : proceedings of a workshop held in Philadelphia, Pennsylvania, USA, June 1995 / ed. by Yves Champey, Alan L. Hillman. - [Paris] : Rhone-Poulenc Rorer Foundation, cop. 1996. - XII, [2], 43 s. / 22 cm. -(Symposium Series on the Socioeconomic Aspects of Drug Therapy Innovation ; 4) ISBN 1-57130-026-0