title: Counterion NMR in polyelectrolyte solutions. 25Mg2+ and 43Ca2+ interaction DNA.
mesh_terms: D000818:Animals; D002118:Calcium; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D004247:DNA; D007700:Kinetics; D008274:Magnesium; D009682:Magnetic Resonance Spectroscopy; D013696:Temperature; D013950:Thymus Gland
chemical_list: D004247:DNA; D008274:Magnesium; D002118:Calcium