TY  - RPRT
TI  - Selective IgG subclass deficiency: quantification and clinical relevance.
AU  - R Jefferis
AU  - D S Kumararatne
PY  - 1990
DO  - 10.1111/j.1365-2249.1990.tb05339.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2204502/
ID  - 2204502
ER  -