00537nas a2200205 4500000000100000000000100001008004100002100001700043700001200060700001400072700001400086700001600100700001500116700001300131700001200144245014000156300001400296490000700310022001400317 2017 d1 aR. Weinstein1 aP. Ryan1 aJ. Berlin1 aA. Matcho1 aM. Schuemie1 aJ. Swerdel1 aK. Patel1 aD. Fife00aChanneling in the Use of Nonprescription Paracetamol and Ibuprofen in an Electronic Medical Records Database: Evidence and Implications a1279-12920 v40 a0114-5916