@article{Higgins1991, author = {Higgins, D.L. and Galavotti, C. and O'Reilly, K.R. and Schnell, D.J. and Moore, M. and Rugg, D.L. and Johnson, R.}, title= {Evidence for the effects of HIV antibody counseling and testing on risk behaviors}, year = {1991}, doi = {10.1001/jama.266.17.2419}, journal = {Journal of the American Medical Association}, volume = {266}, number = {17}, pages = {2419--2429}, }