title: Prevention of origin of adenosine effect in nucleolus under influence of RNase and pepsine.
mesh_terms: D002460:Cell Line; D002466:Cell Nucleolus / Q000187:drug effects*; D046508:Culture Techniques; D006367:HeLa Cells / Q000187:drug effects; D008858:Microscopy, Phase-Contrast; D009705:Nucleosides / Q000494:pharmacology*; D010434:Pepsin A / Q000494:pharmacology*; D012260:Ribonucleases / Q000494:pharmacology*
chemical_list: D009705:Nucleosides; D012260:Ribonucleases; D010434:Pepsin A