Instructions, with Illustrations, for the Self-Collected Pharyngeal Swab for Gonorrhea and Chlamydia Testing (Aptima CA2, Hologic, San Diego, California). DeMarc A. Hickson Nhan L. Truong Neena Smith-Bankhead Nikendrick Sturdevant Dustin T. Duncan Jordan Schnorr June A. Gipson Leandro A. Mena 10.1371/journal.pone.0143823.g001 https://plos.figshare.com/articles/figure/_Instructions_with_Illustrations_for_the_Self_Collected_Pharyngeal_Swab_for_Gonorrhea_and_Chlamydia_Testing_Aptima_CA2_Hologic_San_Diego_California_/1628552 <p>The MARI Study.</p> 2016-01-05 14:52:13 ga Sexual Behaviors African American men Ecological Study MARI U.S hiv blood pressure measures sti African American MSM Southeastern United States