TY - RPRT TI - Comparative studies on polymer-type serum and exocrine IgA. AU - R E Ballieux AU - J W Stoop AU - B J Zegers PY - 1968 DO - 10.1111/j.1600-0609.1968.tb01736.x UR - https://pubmed.ncbi.nlm.nih.gov/4179185/ ID - 4179185 ER -