Physiological Process

Labor Onset

AMW:PHYS:080079

The beginning of true OBSTETRIC LABOR which is characterized by the cyclic uterine contractions of increasing frequency, duration, and strength causing CERVICAL DILATATION to begin (LABOR STAGE, FIRST ).

Physiology functional

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Labor Stage, First has parent Labor Onset

Labor Stage, Second has parent Labor Onset

Labor Stage, Third has parent Labor Onset

Labor Onset has parent Labor, Obstetric

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