[COMPARATIVE STUDY OF 2 TESTS FOR THE EARLY DIAGNOSIS OF PREGNANCY].
D000568:Amenorrhea; D003937:Diagnosis, Differential; D042241:Early Diagnosis; D005260:Female; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests
AMENORRHEA; DIAGNOSIS, DIFFERENTIAL; PREGNANCY; PREGNANCY TESTS
ESTUDIO COMPARATIVO DE DOS PRUEBAS PARA DIAGN'OSTICO TEMPRANO DE EMBARAZO.