Cognitive reserve is the capacity to cope with cognitive decline due to brain damage caused by neurological diseases. Premorbid IQ has been investigated as a proxy for cognitive reserve. To date. no study has focused on the effects of premorbid IQ in patients with brain tumors. https://safeersappliancers.shop/product-category/neff-z52jcd0w0-regenerative-cleanair-recirculation-module/