Synthetic cathinones in Belgium: a cluster of poly-drug intoxications involving ?-pyrrolidinoisohexiophenone (?-PiHP), , Nik De Brabanter, Nick Verougstraete, An-Sofie Decavele, Olivier Heylen, Cathelijne Lyphout, Kathleen Croes, and  , Clinical Toxicology, Aug-07-2025, (2025)