title: Positional information and pattern regulation in hydra: the effect of gamma-radiation.
mesh_terms: D002455:Cell Division / Q000528:radiation effects; D006829:Hydra / Q000502:physiology / Q000528:radiation effects*; D008938:Mitosis; D009024:Morphogenesis; D011829:Radiation Dosage; D011830:Radiation Effects; D012038:Regeneration / Q000528:radiation effects*; D013217:Starvation; D013997:Time Factors