title: Use of the Grace Checklist for Rating the Quality of Observational Comparative Effectiveness Research.
authors.affiliation: Quintiles, Cambridge, MA, USA.
authors.forename: N A
authors.initials: NA
authors.lastname: Dreyer
authors.affiliation: Quintiles, Cambridge, MA, USA.
authors.forename: A
authors.initials: A
authors.lastname: Bryant
authors.affiliation: Quintiles, Cambridge, MA, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Su
authors.affiliation: Quintiles, Cambridge, MA, USA.
authors.forename: P
authors.initials: P
authors.lastname: Velentgas