"Pregnancy Trimesters" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
The three approximately equal periods of a normal human PREGNANCY. Each trimester is about three months or 13 to 14 weeks in duration depending on the designation of the first day of gestation.
- Pregnancy Trimesters
- Trimesters, Pregnancy
- Pregnancy Trimester
- Trimester, Pregnancy
Below are MeSH descriptors whose meaning is more general than "Pregnancy Trimesters".
Below are MeSH descriptors whose meaning is more specific than "Pregnancy Trimesters".
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