[1] Natl Inst Drug Abuse, Prevent Res Branch, 3WFN MSC 6024,301 North Stonest Ave, Bethesda, MD 20892 USA
[2] Univ Washington, Harborview Med Ctr, 325 9Th Ave,Box 359931, Seattle, WA 98106 USA
[3] Ragon Inst MGH MIT & Harvard, Rm 764 400 Technol Sq, Cambridge, MA 02139 USA
[4] Emory Univ, Rollins Sch Publ Hlth, Grace Crum Rollins Bldg 1518 Clifton Rd, Atlanta, GA 30322 USA
[5] West Virginia Univ, 930 Chestnut Ridge Rd,POB 9156, Morgantown, WV 26505 USA
[6] Univ Massachusetts, UMass Chan Med Sch Baystate, Baystate Med Ctr, Off Res, 3601 Main St,3rd Floor, Springfield, MA 01199 USA
[7] Univ N Carolina, 363 Rosenau Hall CB 7440, Chapel Hill, NC 27599 USA
[8] Southern Illinois Univ, 201 E Madison St, Springfield, IL 62702 USA
[9] Oregon Hlth & Sci Univ, 3270 Southwest Pavil Loop OHSU Phys Pavil, Portland, OR 97239 USA
[10] Ohio State Univ, 302 Cunz Hall 1841 Neil Ave, Columbus, OH 43210 USA
[11] Univ Chicago, 5841 S Maryland Ave, Chicago, IL 60637 USA
[12] Temple Univ, Dept Epidemiol & Biostat, Coll Publ Hlth, 1301 Cecil B Moore Ave,Ritter Annex 905, Philadelphia, PA 19122 USA
[13] Tulane Univ, 1440 Canal St,Suite 2210, New Orleans, LA 70112 USA
[14] Tufts Univ, Sch Med Publ Hlth & Community Med, 136 Harrison Ave, Boston, MA 02111 USA
[15] Univ Wisconsin, 1685 Highland Ave,5th Floor, Madison, WI 53705 USA
[16] Univ Kentucky, 760 Press Ave Suite 280, Lexington, KY 40536 USA
[17] RTI Int, 3040 E Cornwallis Rd,POB 12194, Res Triangle Pk, NC USA
[18] Univ Manitoba, Coll Pharm, Apotex Ctr, 750 McDermot Ave W, Winnipeg, MB R3E 015, Canada