%0 Journal Article %T Comparing pharmacologic measures of tenofovir exposure in a U.S. pre-exposure prophylaxis randomized trial %A Albert Y. Liu %A Eric Vittinghoff %A Kata Chillag %A Monica Gandhi %A Peter Bacchetti %A Peter L. Anderson %A Robert Grant %A Ruth M. Greenblatt %A Ryan Wiegand %A Sanjiv M. Baxi %A Susan Buchbinder %A Yong Huang %J Archive of "PLoS ONE". %D 2018 %R 10.1371/journal.pone.0190118 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5760024/