@misc{indiciae87adadcb41b6, title = {A cautionary note concerning the possibility that transforming growth factor-beta is a switch factor that acts on primary B cells to initiate IgA expression.}, author = {J J Cebra and A George and R L Kerlin}, year = {1991}, doi = {10.1007/bf02919731}, url = {https://pubmed.ncbi.nlm.nih.gov/1955766/}, note = {Source identifier: 1955766} }