Eltbogen, R., M. Litschgi, U. E. Gasser, A. Flueeli, S. Nebel, and C. Zahner. 2016. “Vitex Agnus-Castus Extract (Ze 440) Improves Symptoms in Women With Menstrual Cycle Irregularities”. REPRODUCTIVE ENDOCRINOLOGY, no. 28 (April):86-91. https://doi.org/10.18370/2309-4117.2016.28.86-91.