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L., 2009; Hart Peterson, 2004). The recruitment methods used (i.e., active recruitment
L., 2009; Hart Peterson, 2004). The recruitment methods used (i.e., active recruitment, recruitment of younger MSM and older MSM at different times, and limiting recruitment to just one popular GSN app in Los Angeles, CA) could also have introduced bias and limit the generalizability of our results, especially if there are underlying differences between those who were available or not available

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