TY  - RPRT
TI  - Low-level immunity to rubella.
AU  - R L Northrop
AU  - W M Gardner
AU  - W F Geittmann
PY  - 1972
DO  - 10.1056/nejm197209212871214
UR  - https://pubmed.ncbi.nlm.nih.gov/5055216/
ID  - 5055216
ER  -