Parrott, A., & May, A. L. (2015). Greater sexual risk-taking in female and male recreational MDMA/ecstasy users compared with alcohol drinkers: A questionnaire study. Human Psychopharmacology: Clinical and Experimental, 30(4), pp. 272-275. doi:10.1002/hup.2432

Parrott, Andrew, and Aimee L. May. "Greater Sexual Risk-taking in Female and Male Recreational MDMA/ecstasy Users Compared With Alcohol Drinkers: A Questionnaire Study." Human Psychopharmacology: Clinical and Experimental 30, no. 4 (2015): 272-275.

Parrott, Andrew, and Aimee L. May. "Greater Sexual Risk-taking in Female and Male Recreational MDMA/ecstasy Users Compared With Alcohol Drinkers: A Questionnaire Study." Human Psychopharmacology: Clinical and Experimental 30.4 (2015): 272-275.