| Tissue samples are preserved in formalin or occasionally other fixatives before processing and embedding in paraffin. |
| All surgical specimens were fixed in formalin and examined with hematoxylin-eosin stain. |
| Scrapie is a chronic disease of sheep which is transmitted by a filterable particle that is resistant to heat and formalin fixation. |
| All specimens were fixed in formalin, embedded in paraffin, and cut in 5-em-thick sections. |
| The remaining tissue was submitted for fixation in buffered formalin and routinely processed. |
| Bone marrow biopsy material was acid decalcified prior to formalin fixation. |
