Where possible the former is to be preferred as the less severe procedure. There is, however, no doubt that these hamartomas should be removed in view of the high mortality rate from haemorrhage in the reported cases. One patient in this series (case 2) was left with a hepatic lesion and only biopsy was performed. At the time of of writing she was being carefully followed up while the situation was reviewed. Her hamartoma was.,the least vascular in our three cases. She stopped taking oral* contraceptives.All three patients were referred to this hospital from other parts of the country for specialized liver surgery. It is not possible, therefore, to make any inferences about the incidence of hepatic hamartoma whether occurring in patients on oral contraceptives or not.More cases will have to be described before an association between liver hamartomas and oral contraceptive therapy can be proved. It is surprising that no cases were described until recently and that none have been reported from the United Kingdom until now. In the meantime, however, it seems prudent for practitioners to exclude the presence of an epigastric mass in their patients before prescribing oral contraceptives and also to bear in mind the possibility of hepatic hamartoma or adenoma as a cause of haemoperitoneum in women on the pill. Journal, 1974, 3, 10-13 Summary A total of 189 patients with uncomplicated myocardial infarction were selected at random for early or late mobilization and discharge from hospital. Patients were admitted to the study after 48 hours in a coronary care unit if they were free of pain and showed no evidence of heart failure or significant dysrhythmia. Randomization was achieved by monthly cross-over of the three medical wards to which the patients were discharged. One group of patients was mobilized immediately and discharged home after a total of nine days in hospital, and the second group was mobilized on the ninth day and discharged on the 16th day. Outpatient assessment was carried out six weeks after admission. No significant differences were observed between the groups in terms of mortality or morbidity, as reflected by the incidence of recurrent chest pain or myocardial infarction, heart failure, dysrhythmia, or venous thromboembolism detected either clinically or by 115I-labelled fibrinogen scanning.