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Research

Association of paternal age with perinatal outcomes between 2007 and 2016 in the United States: population based cohort study

BMJ 2018; 363 doi: https://doi.org/10.1136/bmj.k4372 (Published 31 October 2018) Cite this as: BMJ 2018;363:k4372

Linked editorial

Paternal factors in preconception care: the case of paternal age

Linked opinion

Don’t forget the father