Authors: Peter J Bayley; Jennifer Y Kong; Drew A Helmer; Aaron Schneiderman; Lauren A Roselli; Stephanie M Rosse; Jordan A Jackson; Janet Baldwin; Linda Isaac; Michael Nolasco; Marc R Blackman; Matthew J Reinhard; John Wesson Ashford; Julie C Chapman Journal: BMC Med Res Methodol Date: 2014-04-08 Impact factor: 4.615