Institution Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, University of Indonesia, Persahabatan Hospital, Jakarta, Indonesia.
Title Echinacea purpurea along with zinc, selenium and vitamin
C to alleviate exacerbations of chronic obstructive pulmonary disease: results from a randomized controlled trial.
Source Journal of Clinical Pharmacy & Therapeutics. 36(5):568-76, 2011 Oct.