Sewell, Janey <br/><br/>
Changes in recreational drug use, drug use associated with chemsex, and HIV-related behaviours, among HIV-negative men who have sex with men in London and Brighton, 2013-2016.  [electronic resource] 

 -  Sexually transmitted infections  11 2018 
 - 494-501 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1472-3263 
<br/><br/><label>Standard No.: </label>10.1136/sextrans-2017-053439  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Cross-Sectional Studies<br/>Drug Users--psychology<br/>HIV--isolation & purification<br/>HIV Infections--epidemiology<br/>Health Knowledge, Attitudes, Practice<br/>Homosexuality, Male--psychology<br/>Humans<br/>Illicit Drugs--adverse effects<br/>London--epidemiology<br/>Male<br/>Methamphetamine--adverse effects<br/>Middle Aged<br/>Pre-Exposure Prophylaxis<br/>Prevalence<br/>Prospective Studies<br/>Risk-Taking<br/>Sexual Behavior--psychology<br/>Sexual Health--statistics & numerical data<br/>Sexual Partners--psychology<br/>Substance-Related Disorders--epidemiology<br/>Surveys and Questionnaires<br/>Time Factors<br/>United Kingdom--epidemiology<br/>Unsafe Sex--psychology<br/>Young Adult