POLYMER, CONTRAST AGENT FOR NUCLEAR MAGNETIC RESONANCE ANALYSIS OR MAGNETIC RESONANCE IMAGING USING THE POLYMER, COMPOUND, AND METHOD OF NUCLEAR MAGNETIC RESONANCE ANALYSIS AND METHOD OF MAGNETIC RESONANCE IMAGING USING THE POLYMER

POLYMER, CONTRAST AGENT FOR NUCLEAR MAGNETIC RESONANCE ANALYSIS OR MAGNETIC RESONANCE IMAGING USING THE POLYMER, COMPOUND, AND METHOD OF NUCLEAR MAGNETIC RESONANCE ANALYSIS AND METHOD OF MAGNETIC RESONANCE IMAGING USING THE POLYMER