00503nas a2200157   4500000000100000000000100001008004100002100001300043700001100056700001700067700001600084245021400100300001100314490000600325022001400331       2011                            d1 aA. Shafe1 aS. Lee1 aJ. Dalrymple1 aP. Whorwell00aThe LUCK study: Laxative Usage in patients with GP-diagnosed Constipation in the UK, within the general population and in pregnancy. An epidemiological study using the General Practice Research Database (GPRD)  a343-630 v4  a1756-283x