TY - RPRT TI - An improved method of preparing haptoglobin polypeptide chains using guanidine hydrochloride. AU - S Gordon AU - H Cleve AU - A G Bearn PY - 1968 DO - 10.3181/00379727-127-32619 UR - https://pubmed.ncbi.nlm.nih.gov/4966982/ ID - 4966982 ER -