The association of bearing surface materials with the risk of revision following primary total hip replacement: A cohort analysis of 1,026,481 hip replacements from the National Joint Registry - Michael R. Whitehouse; Rita Patel; Jonathan M. R. French; Andrew D. Beswick; Patricia Navvuga; Elsa M. R. Marques; Ashley W. Blom; Erik Lenguerrand (PLoS Medicine)