Fig. 1From: Transcriptomic analysis of monocytes from HIV-positive men on antiretroviral therapy reveals effects of tobacco smoking on interferon and stress response systems associated with depressive symptomsStudy workflow diagram. Overview of sample processing and bioinformatic analysis steps with numbers of included participants, samples, and microarray probes. DE, differential expression; GEO, NCBI Gene Expression Omnibus, PCA, principal component analysis; TS+, tobacco smoker; TS−, non-smokerBack to article page