Correspondence to: Professor Robert H Anderson, Cardiac Unit, Institute of Child Health, 30 Guilford Street, London WC1H 1EJ, UK; r.anderson{at}ich.ucl.ac.uk In the first part of our review of cardiac ...
What you see is pinyin, literally 'spell out the sound'. It's a system for romanizing Chinese ideograms, used in mainland China for Mandarin, a.k.a. putonghua.
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