title: HLM2 (CRX796353; CRA012672)
library_construction_protocol: Using the extracted total RNA as the object, magnetic beads enriched and fragmented mRNA with polyA tails. Using fragmented mRNA as a template, reverse transcribe two strands of cDNA, perform end modification on them, screen for cDNA of around 370-420bp, and amplify, purify, and quantify them