Islam, A. N., Alamgir, M. R., Rahman, M. A., Kabir, A., Ahmed, F., Ahmed, D. S., Masud, M. H., & Raihan, A. (2016). Outcome of pneumatic balloon dilatation of lower oesophageal sphincter of oesophagus of patients suffering from achalasia cardia. Bangladesh Medical Journal, 44(2), 76–81. https://doi.org/10.3329/bmj.v44i2.27242