1. Purchasing prescription medication in Mexico without a prescription;Casner;The Western Journal of Medicine,1992
2. Cimino, K. , & Coto, D. (2005, March 20). Prescription for danger. The Charlotte Observer, pp. A1, A14-A15.
3. Multicenter study on self-medication and self-prescription in six Latin American countries;Drug Utilization Research Group;Clinical Pharmacology and Therapeutics,1997
4. Legal status and health insurance among immigrants;Goldman;Health Affairs,2005