11. Embryologists say there is absolutely no basis for such a distinction, but it has persisted.12. Embryologist Jane Oppenheimer analyzed the effects of weightlessness on fish eggs at various stages of development.13. An endocrinologist and embryologist harvested her eggs in a forty-five-minute hospital procedure. 14. In 1923-24 the American embryologist , George Washington Corner worked with Starling in his laboratory. 15. After withdrawal, the catheter is handed to the embryologist , who inspects it for retained embryos. 16. James Ebert, an embryologist at the Carnegie Institution of Washington, recommended her to the position. 17. Embryologists feigned surprise, but those who had already experimented with human embryos must surely have expected this.18. Embryologists who are appalled at the idea of reproducing a human have nonetheless polished the techniques with animals.19. She started her career as a clinical embryologist and joined University College London ( UCL ) in 1994. 20. State officials noted that Obasaju is not the clinic's regular embryologist ; he works only with Nash.