Relative effectiveness of 12-hourly fractionation and a non-uniform x-ray schedule in the optimum fractionation of C3H mouse mammary tumours.

摘要: Abstract In previous experiments the highest proportions of tumours controlled for 150 days at a particular level skin reaction were obtained with five or nine fractions X rays in ten respectively. Poor results same numbers given 4 18 The present work reports three “non-standard” fractionation schedules: two equal doses 12-hour intervals over four and one eight decreasing 11 days. interval schedules gave which to best by any other schedule tested. 8F/11d non-uniform schedule, however, mediocre spite being close previously optimum overall time. When these are compared published from tumour system, phases demonstrated. At short times, up days, situation is finely balanced, so th...