Observational study comparing the accuracy/variability between the ERSPC and the PCPT risk calculators for the prediction of significant prostate cancer in patients with PSA <10 ng/mL. - Gomez Gomez E; Salamanca Bustos JJ; Carrasco Valiente J; Fernandez Rueda JL; Blanca A; Valero Rosa J; Bravo Arrebola I; Marquez López J; Jimenez Vacas JM; Luque R; Requena Tapia MJ (BMJ open, 2019)