00388nas a2200157   4500000000100000000000100001008004100002100001500043700001400058700001300072700001200085245010100097300001000198490000800208022001400216       2015                            d1 aF. Zingone1 aA. Sultan1 aD. Humes1 aJ. West00aRisk of acute appendicitis in and around pregnancy: a population-based cohort study from England  a332-70 v261  a0003-4932