International Journal of Gynecology & Obstetrics · 2003 · 58 citations · 24 references
Fetal breathing movements are a complex phenomenon with a composite, progressive pattern of development during gestation.
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Respiratory movements and rapid eye movement sleep in the foetal lamb
G. S. Dawes, Harold E. Fox, B. M. Leduc et al. · The Journal of Physiology · 1972 · 564 citations · Full text