To the Editor: Nicolaides et al. (March 17 issue) 1 report a high rate of pessary removal (24.5% in <34 weeks) in women with singleton pregnancies who had a short cervical length at 20 to 24 weeks of ...
The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
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