TY  - RPRT
TI  - Cellular interactions within the germinal centre.
AU  - A S Freedman
AU  - L M Nadler
DO  - 10.1016/0923-2494(91)90065-q
UR  - https://pubmed.ncbi.nlm.nih.gov/1896611/
ID  - 1896611
ER  -