TY  - RPRT
TI  - How diverse should the immune system be?
AU  - R J De Boer
AU  - A S Perelson
PY  - 1993
DO  - 10.1098/rspb.1993.0062
UR  - https://pubmed.ncbi.nlm.nih.gov/8394577/
ID  - 8394577
ER  -