The development and validation of a scale assessing individual schemas used in classifying a smoker: implications for research and practice.
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
    Berg CJ, Nehl E, Sterling K, Buchanan T, Narula S, Sutfin E, Ahluwalia JS. The development and validation of a scale assessing individual schemas used in classifying a smoker: implications for research and practice. Nicotine Tob Res. 2011 Dec; 13(12):1257-65.