Links to recent provings/neue Arzneimittelstudien
Ginkgo biloba, by Anne Schadde, Munich
http://anne.schadde.de/cms/ginkgo.html
Vitis vinifera, Provings of Vine
White - Austria, by Peter König - Vitis vinifera folium
Red - Germany by Jürgen Weiland -Vitis vinifera cum fructibus
A study of two homeopathic remedies,
published in one volume in English language by Fagus Verlag