Roy, S. D., & Flynn, G. L. (1990). Transdermal delivery of narcotic analgesics: PH, anatomical, and subject influences on cutaneous permeability of fentanyl and sufentanil. Pharmaceutical research, 7(8), 842. https://doi.org/10.1023/A:1015912932416
Chicago Style (17th ed.) CitationRoy, S D., and G L. Flynn. "Transdermal Delivery of Narcotic Analgesics: PH, Anatomical, and Subject Influences on Cutaneous Permeability of Fentanyl and Sufentanil." Pharmaceutical Research 7, no. 8 (1990): 842. https://doi.org/10.1023/A:1015912932416.
MLA (9th ed.) CitationRoy, S D., and G L. Flynn. "Transdermal Delivery of Narcotic Analgesics: PH, Anatomical, and Subject Influences on Cutaneous Permeability of Fentanyl and Sufentanil." Pharmaceutical Research, vol. 7, no. 8, 1990, p. 842, https://doi.org/10.1023/A:1015912932416.