1. 1. Tripathi Indradeva, Chakradutta, Vaidayaprabha hindi commentary, Chaukhambha Sanskrit Sansthan, Vara-nasi, Third edition-1997, Kshudraroga Chikitsa-prakarana, Chapter 55, verses 60-62, pg 316-317
2. 2. http://www.medicalnewstoday.com/articles/sunburn-severity#skin-protection. (Accessed on 14/06/2021)
3. 3. Kimbrough-Green CK, Griffiths CE, Finkel LJ, Ham-ilton TA, Bulengo-Ransby SM, Ellis CN, et al. Topi-cal retinoic acid (tretinoin) for melasma in black pa-tients. A vehicle-controlled clinical trial. Arch Der-matol 1994;130:727-33
4. 4. Azevedo M, Bandeira L, Luza C, Lemos A, Bandeira F. Vitamin D Deficiency, Skin Phototype, Sun Index, and Metabolic Risk Among Patients with High Rates of Sun Exposure Living in the Tropics. J Clin Aesthet Dermatol. 2018 Aug;11(8):15-18. [PMC free article] [PubMed] [Reference list]
5. 5. Goon P et al, skin cancers in skin. type IV-VI, Does the Fitzpatrick scale give a false sense of security? Skin health dis., June 8-(Vol 3)36