https://www.selleckchem.com/pr....oducts/Nicotinamide(
China's sex ratio at birth (SR has declined in the past decade but still exceeds the normal level. This study seeks to depict the SRB trend in the past two decades. We depicted the SRB trend, including SRB by birth order, children composition, residence and hukou type, education, race and province using latest data available from multiple data sources and standardisation and decomposition methods. The SRB remained around 120 in the first decade from 2000 to 2010, and recently declined and approached the normal level
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