@misc{indiciae9454e97f2272, title = {[Sonographic thyroid diagnosis].}, author = {R Petzoldt and H Lutz and M Grumeth and H Heckhausen and F Wopfner}, year = {1975}, url = {https://pubmed.ncbi.nlm.nih.gov/1193527/}, note = {Source identifier: 1193527} }