Cheng, C. M. (2007). Cosmetic use of botulinum toxin type A in the elderly. Dove Medical Press.
Cita Chicago Style (17a ed.)Cheng, Christine M. Cosmetic Use of Botulinum Toxin Type A in the Elderly. Dove Medical Press, 2007.
Cita MLA (8a ed.)Cheng, Christine M. Cosmetic Use of Botulinum Toxin Type A in the Elderly. Dove Medical Press, 2007.
Precaución: Estas citas no son 100% exactas.