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. Author manuscript; available in PMC: 2022 Apr 1.
Published in final edited form as: Pharmacol Ther. 2020 Oct 24;220:107715. doi: 10.1016/j.pharmthera.2020.107715

Fig. 1.

Fig. 1.

A classification of non-coding RNA and their biological functions. Abbreviations: ncRNA: non-coding RNA; circRNA: circular RNA; lncRNA: long non-coding RNA; miRNA: microRNA; siRNA: small interfering RNA; snoRNA: small nucleolar RNA; snRNA: small nuclear RNA; piRNA: piwi-interacting RNA; rRNA: ribosomal RNA; tRNA: transfer RNA.