In the JIPA article ‘Proposal for superscript diacritics for prenasalization, preglottalization and preaspiration’, Figure 1 includes a typo. The diacritics for Advanced Tongue Root and Retracted Tongue Root were confused. (This error is not relevant for the content of the paper.) The correct figure is as follows:
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Figure 1 Proposed changes to IPA Diacritics chart.