LNA Diagram: Dwaine A Braasch, David R Corey, Locked nucleic acid (LNA): fine-tuning the recognition of DNA and RNA, Chemistry & Biology, Volume 8, Issue 1, 2001, Pages 1-7, ISSN 1074-5521, https://doi.org/10.1016/S1074-5521(00)00058-2. (https://www.sciencedirect.com/science/article/pii/S1074552100000582)