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HOME > Korean J Prev Med > Volume 22(3); 1989 > Article
Original Article Gas diffusion effect on Nifedipine in coal workers pneumoconiosis by radio-opacity size.
Yong Hee Cheon
Journal of Preventive Medicine and Public Health 1989;22(3):323-327
DOI: https://doi.org/
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Joongang Hospital, Korea Labour Welfare Corporation, Korea.

Carbon monoxide diffusing capacity(DLco) was evaluated before and after nifedipine administration in coal workers' pneumoconiosis by the size of radioopacity. Nifedipine was administered to 18 men and 17 men of small round opacity group and large opacity group respectively. Placebo was administered to 19 men and 15 men of small and large opacity group respectively. In large opacity group DLco was increased after nifedipine administration. But, it was not significant statistically(0.05 < p < 0.01). In other groups, there were no significance difference between and after medication.

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