1. MMVF22 at any point during the study. or broken with time "enriching" the thin
2. Lifetime studies with MMVF 10 and 11 ner and shorter fractions. In addition
3. were completed in 1992; neither fibrosis none or very few MMVF fibers .20 pm in
4. nor significant numbers of tumors were length were detected in the Iung tissues
5. observed in the Iungs of the exposed from exposed animals at 545 days whereas