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Graph configurations among actors A and B and venue C of (a) venue-mediated weak tie effect, (b) venue-mediated strong tie effect, (c) venue-mediated weak tie effect between sex workers, (d) venue-mediated strong tie effect between sex workers, (e) 1-mode reciprocated tie effect, and (f) 1-mode relational homophily effect: Houston, TX; May 2003–February 2004.
