Impact of low-level laser therapy on the dynamics of pressure ulcer-induced changes considering an infectious agent and cathelicidin LL-37 concentration: a preliminary study - Brauncajs, Małgorzata; Ksiąszczyk, Krzysztof; Lewandowska-Polak, Anna; Gorzela, Katarzyna; Grzegorczyk, Janina (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2018)