In vitro selection of self-cleaving RNAs with a low pH optimum.
Proc Natl Acad Sci U S A. 1997 Sep 30;94(20):10612-7. doi: 10.1073/pnas.94.20.10612.
Proc Natl Acad Sci U S A. 1997.
PMID: 9380683
Free PMC article.