VITAL phase 2 study: Upfront 5‐fluorouracil, mitomycin‐C, panitumumab and radiotherapy treatment in nonmetastatic squamous cell carcinomas of the anal canal (GEMCAD 09‐02) oleh Jaime Feliu, Rocio Garcia‐Carbonero, Jaume Capdevila, Inmaculada Guasch, Vicente Alonso‐Orduna, Carlos Lopez, Pilar Garcia‐Alfonso, Carmen Castanon, Isabel Sevilla, Laura Cerezo, Carles Conill, Begona Quintana‐Angel, Maria E. Sanchez, Ismael Ghanem, Marta Martin‐Richard, Miriam Lopez‐Gomez, Ana Leon, Monica Caro, Teresa Fernandez, Joan Maurel