1. Purchasing prescription medication in Mexico without a prescription: The experience at the border;Casner;West J Med.,1992
2. Medications obtained in Mexico by patients in southern Mexico;Tabet;South Med J.,1990
3. Pharmaceutical products declared by US residents on returning to the United States from Mexico;McKeithan;Clin Ther.,1996
4. Border pharmacy;Conlan;Drug Topics,1997
5. Hearing Before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, 107th Cong, 1st Sess,2001