00643nas a2200217 4500000000100000000000100001008004100002100001500043700001700058700001700075700001400092700001400106700001400120700001400134700001600148700001400164245021000178300001600388490000700404022001400411 2017 d1 aM. Iwagami1 aL. Tomlinson1 aK. Mansfield1 aA. Casula1 aF. Caskey1 aG. Aitken1 aS. Fraser1 aP. Roderick1 aD. Nitsch00aValidity of estimated prevalence of decreased kidney function and renal replacement therapy from primary care electronic health records compared with national survey and registry data in the United Kingdom aii142-ii1500 v32 a0931-0509