Peroral endoscopic myotomy using the posterior approach in an 11-month-old girl with achalasia, severe malnutrition, and recurrent pneumonia.

The article presents case study of a 11-month-old girl who had been delivered at full term and had showed normal growth and development features in the first five months, and mentions that later when the patient showed symptoms such as vomiting, cough and fever, achalasia was diagnosed. [ABSTRACT FROM AUTHOR]