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Efficacy of a complex homeopathic medication (Sinfrontal) in patients with acute maxillary sinusitis: a prospective, randomized, double-blind, placebo-controlled, multicenter clinical trial.
Zabolotnyi DI, Kneis KC, Richardson A, Rettenberger R, Heger M, Kaszkin-Bettag M, Heger PW. Zabolotnyi DI, et al. Among authors: rettenberger r. Explore (NY). 2007 Mar-Apr;3(2):98-109. doi: 10.1016/j.explore.2006.12.007. Explore (NY). 2007. PMID: 17362845 Clinical Trial.
Activation of estrogen receptor-beta by a special extract of Rheum rhaponticum (ERr 731), its aglycones and structurally related compounds.
Wober J, Möller F, Richter T, Unger C, Weigt C, Jandausch A, Zierau O, Rettenberger R, Kaszkin-Bettag M, Vollmer G. Wober J, et al. Among authors: rettenberger r. J Steroid Biochem Mol Biol. 2007 Nov-Dec;107(3-5):191-201. doi: 10.1016/j.jsbmb.2007.04.002. Epub 2007 Jun 22. J Steroid Biochem Mol Biol. 2007. PMID: 17692514