“…Our results provide the most detailed insights to date into NHS coverage and detection rates across NHS coverage in some Chinese provinces reached nearly 100%, similar to the high coverage reported for the USA (98.0%) [9], UK (97.5%) [18], Poland (96.0%) [19] and parts of Italy where NHS has been incorporated into law (99.3%) [20]. Such high coverage in developed countries has been attributed to programs that subsidize the costs of NHS or even make it free [18], the existence of national NHS guidelines [21] and Ministry of Health regulations, government funding for NHS to maternal and child health institutions, and productive collaboration of neonatologists, ear-nose-throat specialists, audiologists, nurses, midwives and parents [19]. Several of these factors may also help explain the substantial increase in NHS coverage in China.…”