«Alternative medicine—the risks of untested and unregulated remedies». N. Engl. J. Med.339 (12): 839-41. September 1998. PMID9738094. doi:10.1056/NEJM199809173391210.
«Alternative medicine—the risks of untested and unregulated remedies». N. Engl. J. Med.339 (12): 839-41. September 1998. PMID9738094. doi:10.1056/NEJM199809173391210.