1. Physicians' drug innovation and relinquishment;Mapes;Soc. Sci. Med.,1977
2. Drug prescribing: patterns, problems and proposals;Christensen;Soc. Sci. Med.,1981
3. The effectiveness of pharmaceutical promotion;Ferber,1958
4. How general practitioners assess risks in using new drugs;Williamson;Jl R. Coll. gen. Pract.,1975
5. Medical Innovation—A Diffusion Study;Coleman,1966