C Perotti, L Torretta, G Viarengo, L Roveda, S Bernuzzi, S Carbone, C Del Fante, R La Torre, F Locatelli, F Bonetti, P Gabba, M Bellosta, L Salvaneschi. Feasibility and safety of a new technique of extracorporeal photochemotherapy: experience of 240 procedures. Haematologica 1999;84(3):237-241; https://doi.org/10.3324/%x.