Peyronie's disease plaque calcification--prevalence, time to identification, and development of a new grading classification.
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
    Peyronie's disease plaque calcification--prevalence, time to identification, and development of a new grading classification. J Sex Med. 2013 Dec; 10(12):3121-8.