title: Speculation concerning average tissue-air ratio determinations for rotational 60Co radiation therapy treatment planning.
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D006801:Humans; D011867:Radioisotope Teletherapy; D012044:Regression Analysis; D013679:Technology, Radiologic
chemical_list: D003037:Cobalt Radioisotopes