Yohmi E, Boediarso AD, Hadinegoro SRS. Lactose malabsorption based on breath hydrogen test in children with recurrent abdominal pain. PI [Internet]. 2016Oct.10 [cited 2025May4];44(6):215-21. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/781