1. Links between exposure to ultraviolet radiation and skin cancer;Mackie;J Royal Coll Phys,1987
2. Ozone depletion and skin cancer;van der Leun;J Photochem Photobiol B: Biology,1988
3. Xeroderma pigmentosum;Cleaver,1987
4. The psoralen story: photochemotherapy and photochemoprotection;Fitzpatrick,1989