title: Studies on photodynamic action. I. The action on pneumococcal transforming DNA.
mesh_terms: D004396:Coloring Agents / Q000494:pharmacology; D004269:DNA, Bacterial / Q000528:radiation effects*; D008027:Light; D010100:Oxygen / Q000494:pharmacology; D011830:Radiation Effects; D011854:Radiochemistry; D013053:Spectrophotometry; D013296:Streptococcus pneumoniae / Q000528:radiation effects*; D014170:Transformation, Genetic
chemical_list: D004396:Coloring Agents; D004269:DNA, Bacterial; D010100:Oxygen