Site for pictures of skin cancer

I'm working on skin cancer, but unfortunately I have not been able to get these images because most sites do not guide me to the database, so I hope to give me gives me images directly and thank you

[Walter Roberson]

duplicates http://www.mathworks.co.uk/matlabcentral/answers/66224-my-aim-is-to-extract-features-of-melanoma-skin-cancer-but-i-do-not-have-data-of-skin-image-can-you-h