title: GSM9202540: human sperm head, donor47, PANDORA-seq; Homo sapiens; ncRNA-Seq
library_construction_protocol: For smallRNA-seq, total RNAs were extracted by Trizol (Invitrogen). Then small RNAs sized at15-50nt were excised from 15% (w/v) urea polyacrylamide gel. Small RNA libraries were constructed according to NEBNext® Multiplex Small RNA Library Prep Set for Illumina (New England Biolabs).