| umls-concept:C0022876 | skos:definition | CSP: onset of labor before term but after the fetus has become viable, in humans usually sometime between the 20th and 37th week of gestation.,NCI: Ouster of a viable infant before the normal end of gestation, commonly defined as interruption of pregnancy between the twentieth-thirty seventh completed weeks after the onset of the last menstrual cycle.,NCI: Ouster of a viable infant before the normal end of gestation, commonly defined as interruption of pregnancy between the twentieth-thirty seventh completed weeks after the onset of the last menstrual cycle.,NCI: A disorder characterized by delivery of a viable infant before the normal end of gestation. Typically, viability is achievable between the twentieth and thirty-seventh week of gestation.,MSH: Onset of OBSTETRIC LABOR before term (TERM BIRTH) but usually after the FETUS has become viable. In humans, it occurs sometime during the 29th through 38th week of PREGNANCY. TOCOLYSIS inhibits premature labor and can prevent the BIRTH of premature infants (INFA | lld:umls |
