@misc{indiciae63df8dc75733, title = {Birefringent crystals in human thyroid.}, author = {H E MacMahon and H Y Lee and C F Rivelis}, year = {1968}, doi = {10.1530/acta.0.0580172}, url = {https://pubmed.ncbi.nlm.nih.gov/5695047/}, note = {Source identifier: 5695047} }