Magrey M, Yi E, Wolin D, Price M, Chirila C, Davenport E, Park Y. Understanding barriers in the pathway to diagnosis of ankylosing spondylitis: results from a US survey of 1690 physicians from 10 specialties. ACR Open Rheumatol. 2020 Oct;2(10):616-26. doi: 10.1002/acr2.11179
Poulos C, Riewpaiboon A, Stewart JF, Clemens J, Guh S, Agtini M, Anh DD, Baiqing D, Bhutta Z, Sur D, Whittington D. Cost of illness due to typhoid fever in five Asian countries. Trop Med Int Health. 2011 Mar 1;16(3):314-23.
Fleming AD, Xia X, McDicken WN, Sutherland GR, Fenn L. Myocardial velocity gradients detected by Doppler imaging. Br J Radiol. 1994 Jul 1;67(799):679-88. doi: 10.1259/0007-1285-67-799-679