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Feasibility and Acceptability of Global Positioning System (GPS) Methods to Study the Spatial Contexts of Substance Use and Sexual Risk Behaviors among Young Men Who Have Sex with Men in New York City: A P18 Cohort Sub-Study

Table 5

Number of days with GPS data per participant, by different time thresholds (n = 75).

Table 5

doi: https://doi.org/10.1371/journal.pone.0147520.t005