The relative safety of ephedra compared with other herbal products.
Whitaker
Julian M
JM
D003627:Data Interpretation, Statistical; D029789:Ephedra / Q000009:adverse effects*; D006801:Humans; D008517:Phytotherapy / Q000009:adverse effects*; D018514:Plant Structures / Q000009:adverse effects*; D012107:Research Design / Q000592:standards