00373nas a2200145   4500000000100000000000100001008004100002100001400043700001200057700001600069245011000085300001100195490000700206022001400213       2014                            d1 aS. Walker1 aC. Hyde1 aW. Hamilton00aRisk of breast cancer in symptomatic women in primary care: a case-control study using electronic records  a788-930 v64  a0960-1643