title: Salivary unconjugated estriol levels in normal third trimester pregnancy - direct correlation with serum levels.
abstract: A radioimmunoassay for salivary unconjugated estriol concentration during the third trimester of normal pregnancy is described. The performance characteristics of the method were established by determining the non-specific binding, the blank value of the endogenous estriol free ("stripped") saliva, the recovery experiment and intra- and interassay coefficient of the variations. The corresponding serum samples were also analyzed by the same method. An excellent correlation was found between salivary and serum estriol concentrations.
mesh_terms: D004964:Estriol / Q000032:analysis* / Q000097:blood; D005260:Female; D006801:Humans; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011863:Radioimmunoassay / Q000379:methods; D012016:Reference Values; D012463:Saliva / Q000032:analysis*
chemical_list: D004964:Estriol