VMAT planning approach to avoid superficial underdosage for accelerated partial breast irradiation. Issue 1 (February 2016) - Zucconi, F.; Mancosu, P.; Lobefalo, F.; Reggiori, G.; Stravato, A.; Palumbo, V.; Gaudino, A.; Paganini, L.; Maggi, G.; De Rose, F.; Tomatis, S.; Scorsetti, M.