Experimental evaluation of the threshold limit of cristobalite--calcined diatomaceous earth.
D000818:Animals; D001772:Blood Cell Count; D001774:Blood Chemical Analysis; D001835:Body Weight; D004285:Dogs; D004781:Environmental Exposure; D006168:Guinea Pigs; D008168:Lung / Q000032:analysis / Q000473:pathology; D008297:Male; D011009:Pneumoconiosis / Q000517:prevention & control*; D051381:Rats; D012822:Silicon Dioxide / Q000032:analysis / Q000633:toxicity*; D014961:X-Ray Diffraction
D012822:Silicon Dioxide