Ejaculation Frequency and Prostate Cancer: CAPLIFE Study by Macarena Lozano-Lorca, Rocío Olmedo-Requena, Rocío Barrios-Rodríguez, Antonio Jiménez-Pacheco, Fernando Vázquez-Alonso, Helga-María Castillo-Bueno, Miguel Rodríguez-Barranco, José Juan Jiménez-Moleón