00381nas a2200169   4500000000100000000000100001008004100002100001400043700001500057700001400072700001400086700001400100245006100114300001400175490000800189022001400197       2017                            d1 aJ. Walker1 aN. Andrews1 aR. Mathur1 aL. Smeeth1 aS. Thomas00aTrends in the burden of varicella in UK general practice  a2678-26820 v145  a0950-2688