A randomized intraindividual comparative study of methyl‐5‐aminolaevulinate vs. 5‐aminolaevulinic acid nanoemulsion (BF‐200 ALA) in photodynamic therapy for actinic keratosis of the face and scalp. (5th October 2018) - Serra‐Guillén, C.; Nagore, E.; Bancalari, E.; Kindem, S.; Sanmartín, O.; Llombart, B.; Requena, C.; Serra‐Guillén, I.; Calomarde, L.; Diago, A.; Bernia, E.; Guillén, C.