11. They said follow-up studies have been unable to duplicate the original research. 12. He's awaiting medical center approval for a follow-up study in pregnant women. 13. Follow up studies are needed to confirm the finding of this study. 14. The researchers plan a follow-up study to look at later-developing neurodevelopmental disorders. 15. Now taking the drug again in a follow-up study , Graber is thrilled. 16. The follow-up study is tentatively scheduled for 1999, but questions remain. 17. Some colleges actively set up study group programs for students to sign up. 18. He said he's too busy to do any follow-up studies , however. 19. A follow-up study revealed nearly half of the 308 racers had been infected. 20. Obviously, all these things will need to be addressed in a follow-up study ,
