Anthony Y K Chan

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OBJECTIVE To determine the direct and indirect cost of osteoarthritis (OA) according to disease severity, and to estimate the total cost of the disease in Hong Kong. METHODS This study is a retrospective, cross-sectional, nonrandom, cohort design, with subjects stratified according to disease severity based on functional limitation and the presence or(More)
Abnormalities in taste function may contribute to poor dietary intake in the elderly, and in patients with renal failure or cancer. This study examined the effect of age on taste thresholds, and taste thresholds adjusted for age, in patients with renal failure with and without dialysis, and patients with cancer receiving chemotherapy and/or radiotherapy.(More)
To assess the need for eye care in children and adolescents with severe mental deficiency, a cross-sectional study of the prevalence and causes of ocular defects amongst these individuals was conducted. Two hundred and sixty residents in a mental handicap unit were examined from January 1992 to June 1993. It was found that there was an unusually high(More)
A prototytpe non-invasive intra-oral device to promote bone growth following dental implantation was developed. The device generates a pulsed electromagnetic field (PEMF) covering the bone interface of the titanium implant. The prescribed treatment period is two hours per day for eight-week duration. It is designed to be a single-patient use disposable(More)
A case of extramedullary plasmacytoma with its unusual appearance is reported. This is the second reported case in world literature affecting the paranasal sinuses with intracranial extension. The role of surgery is to obtain tissue for diagnosis and to excise residual disease. Radiotherapy is the treatment of choice and long-term follow-up is necessary for(More)
Late reactivation of spinal tuberculosis by low-dose methotrexate therapy in a patient with rheumatoid arthritis. tuberculosis infection in patients with systemic rheumatic diseases. Use of intravenous cyclophosphamide in the prevention of corneal melt: justified or not? SIR, We read with interest the article by Clewes et al. about the prophylactic use of(More)
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