102 For instance, several metallic nanoparticles eg, silver, gold, cerium oxide, copper oxide, iron oxide, titanium oxide, titanium dioxide and zinc oxide have been reported to mediate intrinsic anti cancer activities via different mechanisms losing hair on accutane Of these, 212 had no follow up and 1 woman was excluded because she had invasive breast cancer at the beginning of the study, leaving 13, 175 women in the study for analysis