<prompt> All of the following are true about long terms sequel of cranio spinal radiotherapy for children with CNS tumors except:Neurocognitive dysfunctionEndocrinologic dysfunctionMusculo skeletan hypoplasiaNeuropscychological sequel are independent of radiation dose  <response>: Ans. d Neuropsychological sequelae are independent of radiation dose The dose of RT decides the effects due to white matter changes which occur. 