[1] IARC. Solar and ultraviolet radiation. Lyon, International Agency for Research on Cancer (Monographs on the Evaluation of Carcinogenic Risks to Humans, 1992; 55.
[2] Hoel DG, Berwick M, de Gruijl FR, et al. The risks and benefits of sun exposure 2016. Dermatoendocrinol, 2016; 8, e1248325. doi:  10.1080/19381980.2016.1248325
[3] McWhirter JE, Hoffman-Goetz L. Coverage of Skin Cancer Risk Factors and UV Behaviors in Popular U. S. Magazines from 2000 to 2012. J Cancer Educ, 2016; 31, 382-8. doi:  10.1007/s13187-015-0808-1
[4] Diepgen TL, Drexler H, Elsner P, et al. UV-irradiation-induced skin cancer as a new occupational disease. Hautarzt, 2015; 66, 154-9. doi:  10.1007/s00105-015-3587-z
[5] Klepp O, Magnus K. Some environmental and bodily characteristics of melanoma patients. A case-control study. Int J Cancer, 1979; 23, 482-6. doi:  10.1002/(ISSN)1097-0215
[6] Hunter DJ, Colditz GA, Stampfer MJ, et al. Risk factors for basal cell carcinoma in a prospective cohort of women. Ann Epidemiol, 1990; 1, 13-23. doi:  10.1016/1047-2797(90)90015-K
[7] Elwood JM, Gallagher RP, Hill GB, et al. Cutaneous melanoma in relation to intermittent and constant sun exposure: the Western Canada melanoma study. Int J Cancer, 1985; 35, 427-33. doi:  10.1002/(ISSN)1097-0215
[8] Osterlind A, Olsen JH, Lynge E, et al. Second cancer following cutaneous melanoma and cancers of the brain, thyroid, connective tissue, bone, and eye in Denmark, 1943-80. Natl Cancer Inst Monogr, 1985; 68, 361-88. https://www.researchgate.net/publication/19074483_Second_cancer_following_cutaneous_melanoma_and_cancers_of_the_brain_thyroid_connective_tissue_bone_and_eye_in_Denmark_1943-80
[9] Lew RA, Sober AJ, Cook N, et al. Sun exposure habits in patients with cutaneous melanoma: a case control study. J Dermatol Surg Oncol, 1983; 9, 981-6. doi:  10.1111/j.1524-4725.1983.tb01051.x
[10] Beitner H, Norell SE, Ringborg U, et al. Malignant melanoma: aetiological importance of individual pigmentation and sun exposure. Br J Dermatol, 1990; 122, 43-51. https://www.researchgate.net/publication/227871215_Malignant_melanoma_Aetiological_importance_of_individual_pigmentation_and_sun_exposure
[11] Kricker A, Armstrong BK, English DR, et al. Pigmentary and cutaneous risk factors for non-melanocytic skin cancer – a case-control study. Int J Cancer, 1991; 48, 650-62. doi:  10.1002/(ISSN)1097-0215
[12] Lautenschlager S, Wulf HC, Pittelkow MR. Photoprotection. Lancet, 2007; 370, 528-37. doi:  10.1016/S0140-6736(07)60638-2
[13] World Health Organization. Skin cancers. http://www.who.int/uv/faq/skincancer/en/index1.html [2016-2].
[14] The International Commission on Non-Ionizing Radiation. Protection Guidelines on limits of exposure to ultraviolet radiation of wavelengths between 180 nm and 400 nm (incoherent optical radiation). Health Phys, 2004; 87, 171-86. doi:  10.1097/00004032-200408000-00006
[15] Olson RL, Sayre RM, Everett MA. Effect of anatomic location and time on ultraviolet erythema. Arch Dermatol, 1966; 93, 211-5. doi:  10.1001/archderm.1966.01600200067010
[16] Kraemer KH, Lee MM, Scotto J. Xeroderma Pigmentosum Arch Dermatol, 1987; 123, 241-50.
[17] Kricker A, Armstrong BK, Jones ME, et al. Health, solar UV radiation and environmental change. IARC Technical Report No 13. Lyon, International Agency for Research on Cancer. 1993.
[18] Vishvakarman D, Wong JC, Boreham BW. Annual occupational exposure to ultraviolet radiation in central Queensland. Health Phys, 2001; 81, 536-44. doi:  10.1097/00004032-200111000-00008
[19] Wright CY, Reeder AI, Bodeker GE, et al. Solar UVR exposure, concurrent activities and sun-protective practices a mong primary schoolchildren. Photochem Photobiol, 2007; 83, 749-58. doi:  10.1562/2006-08-22-RA-1010
[20] Thieden E, Collins SM, Philipsen PA, et al. Ultraviolet exposure patterns of Irish and Danish gardeners during work and leisure. Br J Dermatol, 2005; 153, 795-801. doi:  10.1111/bjd.2005.153.issue-4
[21] Cockell CS, Scherer K, Horneck G, et al. Exposure of arctic field scientists to ultraviolet radiation evaluated using personal dosimeters. Photochem Photobiol, 2001; 74, 570-8. doi:  10.1562/0031-8655(2001)074<0570:EOAFST>2.0.CO;2
[22] Moehrle M, Korn M, Garbe C. Bacillus subtilis spore film dosimeters in personal dosimetry for occupational solar ultraviolet exposure. Int Arch Occup Environ Health, 2000; 73, 575-80. doi:  10.1007/s004200000183
[23] Duncan DD, Munoz B, Bandeen-Roche K, et al. Visible and ultraviolet-B ocular-ambient exposure ratios for a general population. Salisbury Eye Evaluation Project Team. Invest Ophthalmol Vis Sci, 1997; 38, 1003-11. http://iovs.arvojournals.org/article.aspx?articleid=2161885
[24] Moise AF, Gies HP, Harrison SL. Estimation of the annual solar UVR exposure dose of infants and small children in tropical Queensland, Australia. Photochem Photobiol, 1999; 69, 457-63. doi:  10.1111/php.1999.69.issue-4
[25] Sasaki H, Sakamoto Y, Schnider C, et al. UV-B exposure to the eye depending on solar altitude. Eye Contact Lens-Sci, 2011; 37, 191-5. doi:  10.1097/ICL.0b013e31821fbf29
[26] Hu LW, Gao Q, Xu WY, et al. Diurnal variations in solar ultraviolet radiation at typical anatomical sites. Biomed Environ Sci, 2010; 23, 234-43. doi:  10.1016/S0895-3988(10)60058-X
[27] Gao N, Hu LW, Gao Q, et al. Diurnal Variation of Ocular Exposure to Solar Ultraviolet Radiation Based on Data from a Manikin Head. Photochem Photobiol, 2012; 88, 736-43. doi:  10.1111/php.2012.88.issue-3
[28] Javitt JC, Taylor HR. Cataract and latitude. Doc Ophthalmol, 1995; 88, 307-25. doi:  10.1007/BF01203684
[29] Barnard WF, Saxena VK, Wenny BN, et al. Daily surface UV exposure and its relationship to surface pollutant measurements. J Air Waste Manage Assoc, 2003; 53, 237-45. doi:  10.1080/10473289.2003.10466134
[30] Turner J, Parisi AV. Influence of reflected UV irradiance on occupational exposure from combinations of reflective wall surfaces. Photochem Photobiol Sci, 2013; 12, 1589-95. doi:  10.1039/c3pp50059d
[31] Birt B, Cowling I, Coyne S. UVR reflections at the surface of the eye. J Photochem Photobiol B-Biol, 2004; 77, 71-7. doi:  10.1016/j.jphotobiol.2004.05.003
[32] Birt B, Cowling I, Coyne S, et al. The effect of the eye's surface topography on the total irradiance of ultraviolet radiation on the inner canthus. J Photochem Photobiol B, 2007; 87, 27-36. doi:  10.1016/j.jphotobiol.2006.12.008
[33] Grobner J, Albold A, Blumthaler M, et al. Variability of spectral solar ultraviolet irradiance in an Alpine environment. J Geophys Res, 2000; 105, 26991-7003. doi:  10.1029/2000JD900395
[34] Birt B, Cowling I, Coyne S, et al. The effect of the eye's surface topography on the total irradiance of ultraviolet radiation on the inner canthus. J Photochem Photobiol B-Biol, 2007; 87, 27-36. doi:  10.1016/j.jphotobiol.2006.12.008
[35] Baczynska KA, Pearson AJ, O'Hagan JB, et al. Effect of altitude on solar UVR and spectral and spatial variations of UV irradiances measured in Wagrain, Austria in winter. Radiat Prot Dosim, 2013; 154, 497-504. doi:  10.1093/rpd/ncs261
[36] Schouten P, Parisi AV. Direct comparison between the angular distributions of the erythemal and eye-damaging UV irradiances: A pilot study. J Photochem Photobiol B-Bio, 2010; 102, 146-55. http://www.sciencedirect.com/science/article/pii/S1011134410002460
[37] ISO 28077:2006(E)/CIE S019/E:2006. Photocarcinogenesis Action Spectrum (Non-Melanoma Skin Cancers). 2006.
[38] Barnard WF, Saxena VK, Wenny BN, et al. Daily surface UV exposure and its relationship to surface pollutant measurements. J Air Waste Manage Assoc, 2003; 53, 237-45. doi:  10.1080/10473289.2003.10466134
[39] Airey DK, Wong JC, Fleming RA. A comparison of human and headform-based measure-ments of solar ultraviolet-B dose. Photodermatol Photoimmunol Photomed, 1995; 11, 155-8. doi:  10.1111/phpp.1995.11.issue-4
[40] Gies P, Javorniczky J, Roy C, et al. Measurements of the UVR protection provided by hats used at school. Photochem Photobiol, 2006; 82, 750-54. doi:  10.1562/2005-10-27-RA-727
[41] Holman CD, Gibson IM, Stephenson M, et al. Ultraviolet irradiation of human body sites in relation to occupation and outdoor activity: field studies using personal UVR dosimeters. Clin Exp Dermatol, 1983; 8, 269-77. doi:  10.1111/ced.1983.8.issue-3
[42] Diffey BL, Cheeseman J. Sun protection with hats. Br J Dermatol, 1992; 127, 10-2. doi:  10.1111/bjd.1992.127.issue-1
[43] Diffey BL, Kerwin M, Davis A. The anatomical distribution of sunlight. Br J Dermatol, 1977; 97, 407-10. doi:  10.1111/bjd.1977.97.issue-4
[44] Wong CF, Fleming RA, Carter SJ, et al. Measurement of human exposure to ultraviolet-B solar radiation using a CR-39 dosimeter. Health Phys, 1992; 63, 457-61. doi:  10.1097/00004032-199210000-00011