Hi-fun, homepas and incidental sex with drugs: a qualitative study developing a locally grounded definition of hi-fun (chemsex) compared to other sexualised drug use types practiced by gay, bisexual and other men who have sex with men in Thailand. - Witzel TC; Waratworawan W; Samoh N; Rodger AJ; Prabowo H; Lai G; Bootsan P; Chaicharoen I; Sawangying T; Thanawattewakul R; Nonenoy S; Thongsuksangcharoen S; et al. (Harm reduction journal, 2026)