Detection of perineural invasion in prostate needle biopsies with deep neural networks. - Kartasalo, Kimmo; Ström, Peter; Ruusuvuori, Pekka; Samaratunga, Hemamali; Delahunt, Brett; Tsuzuki, Toyonori; Eklund, Martin; Egevad, Lars (Virchows Archiv: European Journal of Pathology, 2022)