Ket-in, V. .; Sriyasak, A.; Chookunhom, P. .; Sangarthit, S. .; Premmuang, N. .; Deesomsakul, P. . The Effectiveness of “PCK. EWS score” (Pediatrics) Among Pneumonia Pediatric Patients at Prachomklao Hospital, Phetchaburi Province. HuaHin Med. J 2023, 3, 1-11.