[Research on placental integrity; two new tests; preliminary note].
D000818:Animals; D005260:Female; D006801:Humans; D008322:Mammals; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy; D012106:Research
PLACENTA/physiology
Investigacion de la integridad placentaria; dos pruebas nuevas; nota previa.