paraffin block in a sentence

1. We're talking five 20-gram paraffin blocks of Talon, the second-generation anticoagulant that kills rats through internal bleeding.
2. Specifically, the Commission's autopsy material, including a paraffin block containing two pieces of brain tumor, were reviewed by Drs.
3. Taubenberger and his colleague Ann Reid, took a razor blade and shaved off pieces of tissue from the paraffin blocks for molecular analysis.
4. It's difficult to find paraffin block in a sentence.