Investigation of antimicrobial effect of crude extract and three sub-fractions of Platychaete aucheri (Boiss.) Boiss against five standard microbial strains and clinical Escherichia coli isolates Journal title: Journal of Herbal Drugs Authors: Tina Zabihi- Nik; Mojdeh Hakemi-Vala; Fatemeh Baghery Bejestany Subject(s): Medicine, Agricultural Science, Biotechnology, Botany, Genetics, Plant Sciences, Marketing, Pharmacology, Toxicology