• Journal Article

Study protocol, sample characteristics, and loss to follow-up: The OPPERA Prospective Cohort Study

Citation

Bair, E., Brownstein, N., Ohrbach, R., Greenspan, J., Dubner, R., Fillingim, R., ... Slade, G. (2013). Study protocol, sample characteristics, and loss to follow-up: The OPPERA Prospective Cohort Study. The Journal of Pain, 14(12, Suppl. 2), T2 - T19.

Abstract