{'magnetic resonance imaging': [1, 0, 0, 2], 'mri': [0, 0, 0, 2], 'magnetic resonance': [0, 0, 1, 1], 'magnetic record': [0, 0, 0, 1], 'intestines': [2, 0, 0, 1], 'magnetic recording': [0, 0, 0, 1], 'investigations': [0, 0, 0, 4]}