Alexander GC, Mohajir N, Meltzer DO (2005). "Consumers' perceptions about risk of and access to nonprescription medications". Journal of the American Pharmacists Association. 45 (3): 363–370. doi:10.1331/1544345054003868. PMID15991758.
Alexander GC, Mohajir N, Meltzer DO (2005). "Consumers' perceptions about risk of and access to nonprescription medications". Journal of the American Pharmacists Association. 45 (3): 363–370. doi:10.1331/1544345054003868. PMID15991758.