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Echinacea for preventing and treating the common cold.
Karsch-Völk M, Barrett B, Kiefer D, Bauer R, Ardjomand-Woelkart K, Linde K. Karsch-Völk M, et al. Among authors: kiefer d. Cochrane Database Syst Rev. 2014 Feb 20;2014(2):CD000530. doi: 10.1002/14651858.CD000530.pub3. Cochrane Database Syst Rev. 2014. PMID: 24554461 Free PMC article. Review.
Herbal remedies.
Kiefer DS, Barrett B. Kiefer DS, et al. Am Fam Physician. 1999 Oct 15;60(6):1662, 1665; author reply 1665-6. Am Fam Physician. 1999. PMID: 10537382 Free article. No abstract available.
Panax ginseng.
Kiefer D, Pantuso T. Kiefer D, et al. Am Fam Physician. 2003 Oct 15;68(8):1539-42. Am Fam Physician. 2003. PMID: 14596440 Free article. Review.
219 results