TY - CHAP M1 - Book, Section TI - Photosensitivity and Other Reactions to Light A1 - Marneros, Alexander G. A1 - Bickers, David R. A2 - Kasper, Dennis A2 - Fauci, Anthony A2 - Hauser, Stephen A2 - Longo, Dan A2 - Jameson, J. Larry A2 - Loscalzo, Joseph PY - 2014 T2 - Harrison's Principles of Internal Medicine, 19e AB - Sunlight is the most visible and obvious source of comfort in the environment. The sun provides the beneficial effects of warmth and vitamin D synthesis. However, acute and chronic sun exposure also has pathologic consequences. Few effects of sun exposure beyond those affecting the skin have been identified, but cutaneous exposure to sunlight is the major cause of human skin cancer and can have immunosuppressive effects as well. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2021/04/15 UR - accessmedicine.mhmedical.com/content.aspx?aid=1120790072 ER -