Search on: ONSETS, LABOR 
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Descriptor English:   Labor Onset 
Descriptor Spanish:   comienzo del parto 
Descriptor Portuguese:   Início do Trabalho de Parto 
Synonyms English:   Labor Onsets
Onset, Labor
Onsets, Labor  
Tree Number:   G08.686.784.769.326.500
Definition English:   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 ). 
Indexing Annotation English:   human only; check tags FEMALE & PREGNANCY
History Note English:   91(75); was see under LABOR 1975-90 
Allowable Qualifiers English:  
BL blood CF cerebrospinal fluid
DE drug effects EH ethnology
GE genetics IM immunology
ME metabolism PH physiology
PX psychology RE radiation effects
UR urine  
Record Number:   22235 
Unique Identifier:   D007745 

Occurrence in VHL:
 

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