To the Editor:
Takizawa, et al described alar ligament and transverse ligament calcification in patients reported as having rheumatoid arthritis1,2,3. Lack of full clinical information precludes assessment as to whether their application of the term “rheumatoid” identifies the specific disease or nonspecifically identifies generalized inflammatory arthritis4 …
Address correspondence to Dr. B. Rothschild, Department of Vertebrate Paleontology, Carnegie Museum, 4400 Forbes Ave., Pittsburgh, Pennsylvania 44272, USA. E-mail: spondylair{at}gmail.com