The rule of four.
Armitage
Bruce A
BA
D020121:5' Untranslated Regions; D004247:DNA / Q000737:chemistry / Q000235:genetics; D054856:G-Quadruplexes; D015870:Gene Expression; D006147:Guanine / Q000737:chemistry / Q000378:metabolism; D006801:Humans; D009690:Nucleic Acid Conformation; D012326:RNA Splicing; D012333:RNA, Messenger / Q000737:chemistry / Q000235:genetics; D016615:Telomere / Q000235:genetics / Q000378:metabolism
D020121:5' Untranslated Regions; D012333:RNA, Messenger; D006147:Guanine; D004247:DNA