@misc{indiciae4d09ec4f34d4, title = {IgG4 as a blocking antibody.}, author = {R C Aalberse and P H Dieges and V Knul-Bretlova and P Vooren and M Aalbers and J van Leeuwen}, year = {1983}, doi = {10.1007/bf02991163}, url = {https://pubmed.ncbi.nlm.nih.gov/6370405/}, note = {Source identifier: 6370405} }