PT - JOURNAL ARTICLE AU - Aarnoud P Huissoon AU - Mamidipudi Thirumala Krishna TI - Does this patient have an immunodeficiency? AID - 10.7861/clinmedicine.11-4-380 DP - 2011 Aug 01 TA - Clinical Medicine PG - 380--384 VI - 11 IP - 4 4099 - http://www.rcpjournals.org/content/11/4/380.short 4100 - http://www.rcpjournals.org/content/11/4/380.full SO - Clin Med2011 Aug 01; 11