00390nas a2200145   4500000000100000000000100001008004100002100001200043700001300055700001200068245011400080300001000194490000800204022003200212       1999                            d1 aS. Jick1 aM. Myers1 aH. Jick00aRisk of idiopathic cerebral haemorrhage in women on oral contraceptives with differing progestagen components  a302-30 v354  a0140-6736 (Print) 0140-6736