
                    
        
            The Physician Assistant: An Illustrated History
        
                    
                by
            
        
        
            T.E. Piemme, A. M. Sadler, R.D. Cater, & R. Ballweg
        
        
                
                            
        
        
                    
Henry Lee "Buddy" Treadwell (right), assistant to Dr. Amos Johnson, a precurser to a physician assistant