权威例句
The use of India ink and 51Cr-labeled microspheres in examining the function of the yolk stalk as a passageway between the yolk sac ...Fate of the Yolk-Stalk in Domestic FowlThe yolk stalk sign: evidence of death in small embryos without heartbeatsPersistent yolk stalk structures causing intestinal obstruction.HISTOCHEMISTRY OF THE ELASMOBRANCH YOLK STALK.Point-of-care ultrasound identification of yolk stalk sign in a case of failed first trimester pregnancy.HISTOCHEMISTRY OF THE ELASMOBRANGH YOLK STALKThe Yolk Stalk SignThe Yolk Stalk SignOn the Absorption of the Yolk and the Traces of the Yolk Stalk after the Incubation of Chickens (Proceedings of the 32nd Meeting of ...