Myers, J B Liver tumours and the pill. [electronic resource] - British medical journal Sep 1977 - 642-3 p. digital Publication Type: Letter ISSN: 0007-1447 Standard No.: 10.1136/bmj.2.6087.642-d doi Subjects--Topical Terms: FemaleHumansLiver Neoplasms--blood supplyUltrasonography