Negative appendectomy: a 10-year review of a nationally representative sample.
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
    Seetahal SA, Bolorunduro OB, Sookdeo TC, Oyetunji TA, Greene WR, Frederick W, Cornwell EE, Chang DC, Siram SM. Negative appendectomy: a 10-year review of a nationally representative sample. Am J Surg. 2011 Apr; 201(4):433-7.