Fatal Subarachnoid Haemorrhage in Young Women:Role of Oral Contraceptives
BMJ 283:762, Thorogood,M.,et al, 1981
Oral Contraceptives & Stroke in Young Women-Collaborative Group
JAMA 231:718, , 1975
Oral Contraception & Increased Risk of Cerebral Ischemia or Thrombosis-Collaborative Group
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