system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Regarding severe combined immunodeficiency, which is true?
assistant
The correct answer is  Severe combined immunodeficiency Constellation of genetically distinct syndromes Defects in both humoral & cell-mediated immune response MC form - XLR - so more in males; mutation in g chain subunit of cytokine receptors Remaining - AR; deficiency of enzyme ADA