TY - GEN AU - Schmitz,L AU - Stockfleth,E TI - Actinic keratoses seldom occur alone SN - 1468-3083 PY - 2019///0826 KW - Humans KW - Keratosis, Actinic KW - complications KW - Skin Neoplasms N1 - Publication Type: Journal Article UR - https://doi.org/10.1111/jdv.14908 ER -