iv found that the best sources of information when it comes to melanoma are the guidelines that the doctors use themselves.google royal college of surgeons in ireland melanoma guidelines.go to the british assoc of dermatoligsts website for the uk guidelines, and use the search term( orientation of wide excision re melanoma )to find the national comprehensive cancer network(USA) guidelines (nccn)a lot of world wide guidelines work in concordance with the nccn .rob