Birth Order Differences in First-Year Neurodevelopment

This cohort study examines whether firstborn and second-born children differ in neurodevelopmental outcomes during infancy.

Corresponding Author: Akiko Tsuchida, PhD, Department of Public Health, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama City, Toyama 930-0194, Japan (aktsuchi@med.u-toyama.ac.jp).

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