title: Reply to 'Shaneyfelt T. Pyramids are guides not rules: the evolution of the evidence pyramid. Evid Based Med 2016;21:121-2'.
authors.affiliation: DynaMed, EBSCO Health, Ipswich, Massachusetts, USA University of Missouri, Columbia, Missouri, USA.
authors.forename: Brian S
authors.identifier: 0000-0003-4300-4928
authors.initials: BS
authors.lastname: Alper
authors.affiliation: McMaster University, Hamilton, Ontario, Canada.
authors.forename: R Brian
authors.initials: RB
authors.lastname: Haynes
keywords: MEDICAL EDUCATION & TRAINING