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College of California at North Park, San Diego, California. Engineering has evolved ways men-who-have-sex-with-men Nadir Weibel School of Ca at San Diego, San Diego, California Davey Meter Mccartney University of California at Hillcrest, San Diego, California Abstract Background Development has evolved ways men-who-have-sex-with-men (MSM) look for intercourse; ?60percent of MSM in the usa utilze the… Continue reading College of California at North Park, San Diego, California. Engineering has evolved ways men-who-have-sex-with-men