RT Article T1 Estimating the number of persons who inject drugs in the United States by meta-analysis to calculate national rates of HIV and Hepatitis C virus infections JF PLOS ONE VO 9 IS 5 A1 Lansky, Amy L. 1955- A1 Crepaz, Nicole A1 Mizuno, Yūko 1946- A1 Chen, Robert A1 Gust, Deborah A1 Mitsch, Andrew A1 Wejnert, Cyprian A1 Holtzman, Deborah A1 Johnson, Christopher A1 Finlayson, Teresa A2 Crepaz, Nicole A2 Mizuno, Yūko 1946- A2 Chen, Robert A2 Gust, Deborah A2 Mitsch, Andrew A2 Wejnert, Cyprian A2 Holtzman, Deborah A2 Johnson, Christopher A2 Finlayson, Teresa LA English YR 2014 UL https://krimdok.uni-tuebingen.de/Record/1912540940 DO 10.1371/journal.pone.009759