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An unusual presentation of ankylosing spondylitis.
Sirisena D, Chong YY, Chin TY. Sirisena D, et al. Among authors: chong yy. Singapore Med J. 2020 May;61(5):283-284. doi: 10.11622/smedj.2018080. Epub 2018 Jul 16. Singapore Med J. 2020. PMID: 30009319 Free PMC article. No abstract available.
Lichen planus: a study of 72 cases in Singapore.
Vijayasingam SM, Lim KB, Yeoh KH, Cheong WL, Chong YY, Daniel M, Lim HM. Vijayasingam SM, et al. Among authors: chong yy. Ann Acad Med Singap. 1988 Oct;17(4):541-4. Ann Acad Med Singap. 1988. PMID: 3265606
90 results