APA
Bair E., Brownstein N. C., Ohrbach R., Greenspan J. D., Dubner R., Fillingim R. B., Maixner W., Smith S. B., Diatchenko L., Gonzalez Y., Gordon S. M., Lim P., Ribeiro-Dasilva M., Dampier D., Knott C. & Slade G. D. (20140731). Study protocol, sample characteristics, and loss to follow-up: the OPPERA prospective cohort study. : The journal of pain.
Chicago
Bair Eric, Brownstein Naomi C, Ohrbach Richard, Greenspan Joel D, Dubner Ronald, Fillingim Roger B, Maixner William, Smith Shad B, Diatchenko Luda, Gonzalez Yoly, Gordon Sharon M, Lim Pei-Feng, Ribeiro-Dasilva Margarete, Dampier Dawn, Knott Charles and Slade Gary D. 20140731. Study protocol, sample characteristics, and loss to follow-up: the OPPERA prospective cohort study. : The journal of pain.
Harvard
Bair E., Brownstein N. C., Ohrbach R., Greenspan J. D., Dubner R., Fillingim R. B., Maixner W., Smith S. B., Diatchenko L., Gonzalez Y., Gordon S. M., Lim P., Ribeiro-Dasilva M., Dampier D., Knott C. and Slade G. D. (20140731). Study protocol, sample characteristics, and loss to follow-up: the OPPERA prospective cohort study. : The journal of pain.
MLA
Bair Eric, Brownstein Naomi C, Ohrbach Richard, Greenspan Joel D, Dubner Ronald, Fillingim Roger B, Maixner William, Smith Shad B, Diatchenko Luda, Gonzalez Yoly, Gordon Sharon M, Lim Pei-Feng, Ribeiro-Dasilva Margarete, Dampier Dawn, Knott Charles and Slade Gary D. Study protocol, sample characteristics, and loss to follow-up: the OPPERA prospective cohort study. : The journal of pain. 20140731.