Analytically confirmed 4-Methyl-N-ethylnorpentedrone (4-MEAP), a synthetic cathinone, in cases presenting to an emergency department. (2nd January 2020) - Weng, Te-I; Su, Pei-I; Chen, Ju-Yu; Chen, Pai-Shan; Hwa, Hsaio-Lin; Fang, Cheng-Chung