@misc{indiciae1b68c8b43dc9, title = {Secular changes in thyroid uptake.}, author = {D H Keeling and E S Williams}, year = {1974}, doi = {10.1259/0007-1285-47-559-432-b}, url = {https://pubmed.ncbi.nlm.nih.gov/4854215/}, note = {Source identifier: 4854215} }