ลิขิตการไพบูลย์ ฐ. A comparative study of the efficiency of the ability to trap air in the breath by analyzing the amount of carbon dioxide between using the nasal oxygen device with a carbon dioxide measurement connector and the invention from 10 cc sterile water ampule. Thammasat University Hospital Journal Online, Pathum Thani, Thailand, v. 7, n. 3, p. 23–40, 2022. Disponível em: https://he02.tci-thaijo.org/index.php/TUHJ/article/view/252622. Acesso em: 2 oct. 2026.