Ratnawati, Ratnawati, V Nguyen, J Morton, R Henry, and P Thomas. “Exhaled Nitric Oxide in Acute Exacerbation of Pediatric Asthma”. Paediatrica Indonesiana 48, no. 2 (May 1, 2008): 64-70. Accessed May 13, 2024. https://www.paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/480.