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Monetary contracts in weight control: Effectiveness of group and individual contracts of varying size.
Jeffery, Robert W., Gerber, Wendy M., Rosenthal, Barbara S., Lindquist, Ruth A.Volume:
51
Year:
1983
Language:
english
Journal:
Journal of Consulting and Clinical Psychology
DOI:
10.1037/0022-006x.51.2.242
File:
PDF, 559 KB
english, 1983