Analysis of low-level laser transmission at wavelengths 660, 830 and 904 nm in biological tissue samples - Barbosa, Rafael Inácio; Guirro, Elaine Caldeira de Oliveira; Bachmann, Luciano; Brandino, Hugo Evangelista; Guirro, Rinaldo Roberto de Jesus (Journal of Photochemistry and Photobiology B: Biology, 2020)