@misc{indiciaef3d7d084f2e3, title = {Ring around the collar area.}, author = {Wirt Anderson Hines and Parwathi Uma Paniker}, year = {2005}, doi = {10.1016/j.amjmed.2004.12.020}, url = {https://pubmed.ncbi.nlm.nih.gov/15745716/}, note = {Source identifier: 15745716} }