Table 1. Criteria for study selection for review of natural history of ataxia-telangiectasia.

	Inclusion criteria	Exclusion criteria
Participants	All ages and gender with a diagnosis of A-T	Animals, plants, or no cases with a diagnosis of A-T
Type of article	Original research articles/data	Review articles, not original articles
Clinical relevance	Described clinical data	Laboratory or animal data only
Location	All countries	N/A

A-T, ataxia-telangiectasia; N/A, not applicable