Concurrent drinking and smoking among college students: An event-level analysis
Psychology of Addictive Behaviors (2012) - Comment
pubmed: 21895348  doi: 10.1037/a0025363  issn: 1939-1501  issn: 0893-164x 

Katie Witkiewitz, Sruti A. Desai, Gillian Steckler, Kristina M. Jackson, Sarah Bowen, Barbara C. Leigh, Mary E. Larimer