References:
- Achalasia - Mayo Clinic - (https://www.mayoclinic.org/diseases-conditions/achalasia/symptoms-causes/syc-20352850)
- Swallowing Problems: Achalasia - (https://my.clevelandclinic.org/health/diseases/17534-swallowing-problems-achalasia)
- O’Neill OM, Johnston BT, Coleman HG. Achalasia: A review of clinical diagnosis, epidemiology, treatment and outcomes. World J Gastroenterol. 2013 Sep 21; 19 (35): 5806-12. DOI: 10.3748/wjg.v19.i35.5806. PMID: 24124325.
Editor: Thilaka Ravi
Technically Checked by: Lingaraj