Efficacy of colour coded strips for classifying birth weights.
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Biomedical subjects
Publications and source records attributed to R K Soni.
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The sex ratio in India has been gradually declining since the beginning of this century during the intercensus period of 1981-91, this ratio declined from 933 to 929. In the past the difference in sex ratios was wholly attributed to higher mortality amongst the females. However date for the years 1990-92 on secondary sex ratios i.e. sex ratio at birth presented in this paper suggest that the difference in sex ratio can also be attributed to a statistically significant higher number of males being born most probably as a result of selective abortion of female fetuses.