Tác giả: Roland Hardman

Valerian, is an up-to-date treatment of all aspects of this very important genus of plants, used in the traditional medicine of many parts of the world, particularly as a sedative. It includes materi …

Valerian, is an up-to-date treatment of all aspects of this very important genus of plants, used in the traditional medicine of many parts of the world, particularly as a sedative. It includes materi …