1. Mail order drugs: who’s managing the store?,1987
2. Testimony presented to Senate Governmental Affairs Subcommittee on Government Efficiency, Federalism, and the District of Columbia;Wygod,1987
3. Mail order: top 250,1989
4. Mail order pharmaceuticals;Enright;Am J Hosp Pharm.,1987
5. The mail order prescription drug industry origins and growth,1991