title: Inherited biochemical defects in lymphocytes causing immunodeficiency disease.
mesh_terms: D000243:Adenosine Deaminase / Q000172:deficiency / Q000235:genetics; D017707:Erythrocyte Transfusion; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000209:etiology* / Q000276:immunology / Q000628:therapy; D017710:Lymphocyte Transfusion; D008214:Lymphocytes / Q000201:enzymology*; D009708:Nucleotidases / Q000172:deficiency; D011683:Purine-Nucleoside Phosphorylase / Q000172:deficiency / Q000235:genetics
chemical_list: D011683:Purine-Nucleoside Phosphorylase; D009708:Nucleotidases; D000243:Adenosine Deaminase