RT Journal Article SR Electronic T1 Sunscreens in melanoma and skin cancer prevention JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 244 OP 245 DO 10.1503/cmaj.050762 VO 173 IS 3 A1 Gallagher, Richard P. YR 2005 UL http://www.cmaj.ca/content/173/3/244.abstract