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Browsing Journal/Magazine Articles by Author "de Alwis, W.R."

Browsing Journal/Magazine Articles by Author "de Alwis, W.R."

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  • Audiometry in brass workers 
    Jayawardana, P.L.; de Alwis, W.R. (College of Community Physicians of Sri Lanka, 2003)
    OBJECTIVES : To compare hearing impairment among brass workers with that of the general population. Study DESIGN - A cross sectional analytical design METHODOLOGY : One hundred and seventy male brass workers and 170 controls ...
  • Ventilatory function in brass workers of Gadaladeniya Sri Lanka 
    Jayawardana, P.L.; de Alwis, W.R.; Fernando, M.A. (Oxford University Press, 1997)
    A cross sectional study was conducted to determine the respiratory hazards of brass workers. The study group was selected randomly. The control group was selected from the general population matched for age by cluster ...

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