Kuchta, K; Schmidt, M; Nahrstedt, A. German Kava Ban Lifted by Court: The Alleged Hepatotoxicity of Kava (Piper methysticum) as a Case of Ill-Defined Herbal Drug Identity, Lacking Quality Control, and Misguided Regulatory Politics.. Planta medica. 2015-12, 81 (18): 1647–53. PMID 26695707. doi:10.1055/s-0035-1558295.|author1=和|last1=只需其一 (帮助)
Showman, AF; Baker, JD; Linares, C; Naeole, CK; Borris, R; Johnston, E; Konanui, J; Turner, H. Contemporary Pacific and Western perspectives on `awa (Piper methysticum) toxicology.. Fitoterapia. 2015-01, 100: 56–67. PMID 25464054. doi:10.1016/j.fitote.2014.11.012.
Kuchta, K; Schmidt, M; Nahrstedt, A. German Kava Ban Lifted by Court: The Alleged Hepatotoxicity of Kava (Piper methysticum) as a Case of Ill-Defined Herbal Drug Identity, Lacking Quality Control, and Misguided Regulatory Politics.. Planta medica. 2015-12, 81 (18): 1647–53. PMID 26695707. doi:10.1055/s-0035-1558295.|author1=和|last1=只需其一 (帮助)
Showman, AF; Baker, JD; Linares, C; Naeole, CK; Borris, R; Johnston, E; Konanui, J; Turner, H. Contemporary Pacific and Western perspectives on `awa (Piper methysticum) toxicology.. Fitoterapia. 2015-01, 100: 56–67. PMID 25464054. doi:10.1016/j.fitote.2014.11.012.