“Radiosensitized Treatment of Primary or Metastatical Malignant Brain Tumors with Hematoporphyrin Derivative”, ELEKTRON ELEKTROTECH, vol. 68, no. 4, pp. 83–86, Apr. 2006, Accessed: Dec. 05, 2025. [Online]. Available: https://eejournal.ktu.lt/index.php/elt/article/view/10660