Linck G, Stoeckel M E, Petrovic A, Porte A
Experientia. 1977 Aug 15;33(8):1098-9. doi: 10.1007/BF01945993.
In the synovial membrane of the mouse, morphological features associated with active secretion are unusually well developed in cells immediately subjacent to the lining layer (in the position of B cells), comparable to those of cells known to elaborate polypeptides.