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JECH.2005.036970
JECH.2005.036970
http://dx.doi.org/10.1136/JECH.2005.036970
Trends in the sex ratio of California births, 1960-1996
P356
Q24682519-E9F4327D-5DF3-41E8-8ABC-02A8543CD160
P356
JECH.2005.036970
http://dx.doi.org/10.1136/JECH.2005.036970