【经】 长期性的故障

chronic exposure: >6gm/day - fluorosis, bone/joint damage…

otitis media,catarrhal,chronic

chronic toxicity study

chronic respiratory disease (CRD) of chickens

chronic lymphocytic thyroiditis, Hashimoto disease

chronic myelocytic leukemia, chronic granulocytic leukemia, CML, CGL

chronic progressive inflammatory polyneuropathy

chronic intermittent peritoneal dialysis