O'Donoghue, J L (September 2006). «Hydroquinone and its analogues in dermatology – a risk-benefit viewpoint». Journal of Cosmetic Dermatology5 (3): 196-203. PMID17177740. doi:10.1111/j.1473-2165.2006.00253.x. «The potential toxicity of HQ (hydroquinone) is dependent on the route of exposure».
Blaut M, Braune A, Wunderlich S, Sauer P, Schneider H, Glatt H (2006). «Mutagenicity of arbutin in mammalian cells after activation by human intestinal bacteria». Food Chem. Toxicol.44 (11): 1940-7. PMID16904805. doi:10.1016/j.fct.2006.06.015.
Shreet, Sharon (April–May 1996). «Mountain Laurel». Flower and Garden Magazine. Archivado desde el original el 26 de mayo de 2012. Consultado el 24 de octubre de 2013.
O'Donoghue, J L (September 2006). «Hydroquinone and its analogues in dermatology – a risk-benefit viewpoint». Journal of Cosmetic Dermatology5 (3): 196-203. PMID17177740. doi:10.1111/j.1473-2165.2006.00253.x. «The potential toxicity of HQ (hydroquinone) is dependent on the route of exposure».
Blaut M, Braune A, Wunderlich S, Sauer P, Schneider H, Glatt H (2006). «Mutagenicity of arbutin in mammalian cells after activation by human intestinal bacteria». Food Chem. Toxicol.44 (11): 1940-7. PMID16904805. doi:10.1016/j.fct.2006.06.015.
Shreet, Sharon (April–May 1996). «Mountain Laurel». Flower and Garden Magazine. Archivado desde el original el 26 de mayo de 2012. Consultado el 24 de octubre de 2013.