title: Method for long term delivery of soluble agents to the chick chorioallantoic membrane.
mesh_terms: D000482:Allantois / Q000187:drug effects; D000818:Animals; D002642:Chick Embryo / Q000187:drug effects*; D002823:Chorion / Q000187:drug effects; D008846:Micromanipulation / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D013974:Thyroxine / Q000494:pharmacology
chemical_list: D013974:Thyroxine