Heil, S. H., Higgins, S. T., Bernstein, I. M., Solomon, L. J., Rogers, R. E., Thomas, C. S., . . . Lynch, M. E. (2008). Effects of Voucher-Based Incentives on Abstinence from Cigarette Smoking and Fetal Growth Among Pregnant Women.

Heil, Sarah H., Stephen T. Higgins, Ira M. Bernstein, Laura J. Solomon, Randall E. Rogers, Colleen S. Thomas, Gary J. Badger, e Mary Ellen Lynch. Effects of Voucher-Based Incentives On Abstinence From Cigarette Smoking and Fetal Growth Among Pregnant Women. 2008.

Heil, Sarah H., et al. Effects of Voucher-Based Incentives On Abstinence From Cigarette Smoking and Fetal Growth Among Pregnant Women. 2008.