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Keywords (from 2000 to 2020).
| Themes | Keywords | Alone/Association |
| Sexual behavior | Chemsex Slamming | 228 52/9 |
| Drugs | Cathinones Mephedrone Methamphetamine GHB GBL GBL/GHB Ketamine Erectile designer drugs (Sildenafil, Tadalafil, and Vardenafil) | 766/17 830/77 335/123 1704/34 456/23 10/3 13 711/76 2859/14 |
| Applications | Sex meeting application | 122/22 |
