Pimsa, Pongput. 2026. “Progression Free Survival with Erlotinib in First Line Treatment EGFR Mutated Non-Small Cell Lung Cancer Stage IV in Sunpasitthiprasong Hospital”. Journal of Health Science Boromarajonani College of Nursing Sunpasitthiprasong 10 (1). Ubon Ratchathani, Thailand:e287170 . https://he01.tci-thaijo.org/index.php/bcnsp/article/view/287170.