Young, A. R. (June 1990). Photocarcinogenicity of psoralens used in PUVA treatment: present status in mouse and man. Journal of Photochemistry and Photobiology. B, Biology. 6 (1–2): 237—247. doi:10.1016/1011-1344(90)85093-C. ISSN1011-1344. PMID2121937.
Young, A. R. (June 1990). Photocarcinogenicity of psoralens used in PUVA treatment: present status in mouse and man. Journal of Photochemistry and Photobiology. B, Biology. 6 (1–2): 237—247. doi:10.1016/1011-1344(90)85093-C. ISSN1011-1344. PMID2121937.
Young, A. R. (June 1990). Photocarcinogenicity of psoralens used in PUVA treatment: present status in mouse and man. Journal of Photochemistry and Photobiology. B, Biology. 6 (1–2): 237—247. doi:10.1016/1011-1344(90)85093-C. ISSN1011-1344. PMID2121937.