Barbosa-Leiker, C., McPherson, S., Mamey, M. R., Burns, G. L., Layton, M. E., Roll, J., & Ling, W. (2015). Examining the factor structure of the Clinical Opiate Withdrawal Scale: A secondary data analysis from the National Drug Abuse Treatment Clinical Trials Network (CTN) 0003. Drug Alcohol Depend.

Barbosa-Leiker, Celestina, Sterling McPherson, Mary Rose Mamey, G. Leonard Burns, Matthew E. Layton, John Roll, e Walter Ling. "Examining the Factor Structure of the Clinical Opiate Withdrawal Scale: A Secondary Data Analysis From the National Drug Abuse Treatment Clinical Trials Network (CTN) 0003." Drug Alcohol Depend 2015.

Barbosa-Leiker, Celestina, et al. "Examining the Factor Structure of the Clinical Opiate Withdrawal Scale: A Secondary Data Analysis From the National Drug Abuse Treatment Clinical Trials Network (CTN) 0003." Drug Alcohol Depend 2015.