http://www.has-sante.fr/portail/jcms/c_2740821/fr/grossesse-de-localisation-inhabituelle-conduite-a-tenir-devant-la-visualisation-ou-la-non-visualisation-d-un-sac-ovulaire-avec-embryon-ou-vesicule-vitelline 2016 false false false France French scientific and technical information local solutions yolk sac behavior, nos pregnancy, nos Pregnant People embryo solution, nos yolk sac in patient safety pregnancy has patient embryonic structures solutions