2.
Diseases of the digestive tract
•esophageal chalasia and achalasia
•gastroesophageal reflux
disease
•tracheoesophageal fistula
•diaphragmatic hernia
3.
Hereditary diseases
•cystic fibrosis,
•deficiency of alpha-1-antitrypsin
•mucopolysaccharidoses
•rickets-like diseases
4.
Parasitic infections
(toxocariasis)
5.
Diseases of the CAS
6.
Diseases of the central and peripheral nervous system
(birth trauma, myopathy, etc.).
7.
Congenital and acquired immunodeficiency
8.
The impact of various physical and chemical environmental factors
9.
Other reasons
(endocrine diseases, systemic vasculitis, Thymomegalia et al.)