Evaluation of the criteria for renewal of LHRH agonists in patients with prostate cancer: results of the ANAREN Study oleh Jesús Calleja-Escudero, Víctor Barrondo, Andrés Rodriguez-Alonso, Francisco Gómez-Veiga, Joan Bestard, Antonio Gómez-Caamaño, Anne-Sophie Grandoulier, Maria Pérez-Sampietro, Venancio Chantada-Abal, Raúl Poza de Celis, on behalf of ANAREN Study Group