Strauss JS, Krowchuk DP, Leyden JJ, Lucky AW, Shalita AR, Siegfried EC, Thiboutot DM, Van Voorhees AS, Beutner KA, Sieck CK, Bhushan R (Nisan 2007). "Guidelines of care for acne vulgaris management". Journal of the American Academy of Dermatology. 56 (4). ss. 651-63. doi:10.1016/j.jaad.2006.08.048. PMID17276540.
Kontaxakis VP, Skourides D, Ferentinos P, Havaki-Kontaxaki BJ, Papadimitriou GN (Ocak 2009). "Isotretinoin and psychopathology: a review". Annals of General Psychiatry. Cilt 8. s. 2. doi:10.1186/1744-859X-8-2. PMC2637283 $2. PMID19154613.
Strauss JS, Krowchuk DP, Leyden JJ, Lucky AW, Shalita AR, Siegfried EC, Thiboutot DM, Van Voorhees AS, Beutner KA, Sieck CK, Bhushan R (Nisan 2007). "Guidelines of care for acne vulgaris management". Journal of the American Academy of Dermatology. 56 (4). ss. 651-63. doi:10.1016/j.jaad.2006.08.048. PMID17276540.
Kontaxakis VP, Skourides D, Ferentinos P, Havaki-Kontaxaki BJ, Papadimitriou GN (Ocak 2009). "Isotretinoin and psychopathology: a review". Annals of General Psychiatry. Cilt 8. s. 2. doi:10.1186/1744-859X-8-2. PMC2637283 $2. PMID19154613.