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'https://openalex.org/W1994071027'], 'abstract_inverted_index': {'Objectives:': [0], 'Early': [1], 'diagnosis': [2], 'of': [3, 13, 40, 61, 86, 101, 138, 141, 176, 179], 'Rheumatoid': [4], 'Arthritis': [5], '(RA)': [6], 'is': [7], 'important': [8], 'to': [9, 46, 173], 'reduce': [10], 'the': [11, 14, 42, 48, 58, 65, 79, 84, 89, 98, 102, 115, 136, 156, 160, 191], 'destruction': [12], 'joint.Current': [15], 'imaging': [16, 32, 50, 70, 168], 'have': [17], 'problems': [18], 'such': [19], 'as': [20, 36], 'contrast': [21], 'agent,': [22], 'cost': [23], 'and': [24, 26, 54, 73, 77, 114, 130, 163, 187], 'time,': [25, 97], 'need': [27], 'for': [28, 110], 'examination': [29], 'by': [30, 145, 159], 'specialists.Fluorescence': [31], 'has': [33, 184], 'been': [34], 'emerging': [35], 'a': [37, 95, 111, 185], 'new': [38], 'way': [39], 'solving': [41], 'problems.Our': [43], 'aim': [44], 'was': [45, 108, 118, 126, 133, 148, 153, 171], 'verify': [47], 'fluorescence': [49, 69, 80, 91, 99, 116, 123, 167], 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