@misc{indiciaea22ebfae3181, title = {[Ring experiment for determining thyroid function: triidothyronine binding capacity (TBG), total thyroxine (T4), thyrotropin (hTSH) and the effective thyroxine quotient (ETR)].}, author = {W Kühnel and F Kilz}, year = {1978}, url = {https://pubmed.ncbi.nlm.nih.gov/684188/}, note = {Source identifier: 684188} }