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The causes of seasonal variation in births.

Abstract

Source DB: PubMed Journal: J R Soc Med ISSN： 0141-0768 Impact factor: 5.344

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2 in total

Authors: K Wellings; W Macdowall; M Catchpole; J Goodrich
Journal: J R Soc Med Date: 1999-02 Impact factor: 5.344

Authors: W H James
Journal: J Biosoc Sci Date: 1990-01

2 in total