00452nas a2200181   4500000000100000008004100001100001300042700001800055700001400073700001400087700001400101700001300115245005900128250001500187300001000202490000700212020005100219       2015                            d1 aCraik R.1 aBuchbinder R.1 aHinman R.1 aGeorge S.1 aRiddle D.1 aMaher C.00aIs this a clinical trial? And should it be registered?  a2015/06/03  a810-40 v95  a1538-6724 (Electronic)<br/>0031-9023 (Linking)