In vitro chromosomal radiosensitivity in "chromosomal breakage syndromes".

Abnormalities, Multiple Anemia, Aplastic/genetics Ataxia Telangiectasia/genetics Cells, Cultured Child Child, Preschool Chromosome Aberrations Chromosomes/radiation effects Dwarfism Erythema/genetics Facial Dermatoses/genetics Female Humans Infant Lymphocytes/cytology Male Photosensitivity Disorders/genetics Radiation Effects Syndrome Telangiectasis/congenital