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Pregnancy Trimesters
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.
Subtype terms (3)
More specific conditions that are subtypes of Pregnancy Trimesters in the MeSH hierarchy.
- Pregnancy Trimester, First
7 drugs approved
- Pregnancy Trimester, Second
3 drugs approved
- Pregnancy Trimester, Third