(-)-3β, 4β-epoxyvalerenic acid from Valeriana officinalisDHARMARATNE, H. Ranjith W; NANAYAKKARA, N. P; KHAN, Ikhlas A et al.Planta medica. 2002, Vol 68, Num 7, pp 661-662, issn 0032-0943Article

Kavalactones from Piper methysticum, and their ¹³C NMR spectroscopic analysesDHARMARATNE, H. Ranjith W; DHAMMIKA NANAYAKKARA, N. P; KHAN, Ikhlas A et al.Phytochemistry. 2002, Vol 59, Num 4, pp 429-433, issn 0031-9422Article

Anxiolytic properties of Piper methysticum extract samples and fractions in the chick social-separation-stress procedureFELTENSTEIN, Matt W; LAMBDIN, L. Corinne; GANZERA, M et al.PTR. Phytotherapy research. 2003, Vol 17, Num 3, pp 210-216, issn 0951-418X, 7 p.Article

Anxiolytic effects of kava extract and kavalactones in the chick social separation-stress paradigmSMITH, Kenyatta K; DHARMARATNE, H. Ranjith W; FELTENSTEIN, Matt W et al.Psychopharmacologia. 2001, Vol 155, Num 1, pp 86-90, issn 0033-3158Article