[Serum lysozyme activity in workers with ceramic pneumoconiosis].
D000328:Adult; D000368:Aged; D002516:Ceramics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009113:Muramidase / Q000097:blood*; D011009:Pneumoconiosis / Q000201:enzymology*
D009113:Muramidase