title: Is there life in MARS?
mesh_terms: D002568:Certification / Q000331:legislation & jurisprudence* / Q000592:standards*; D009683:Nuclear Medicine / Q000331:legislation & jurisprudence* / Q000592:standards*; D011868:Radioisotopes / Q000592:standards*; D006113:United Kingdom
chemical_list: D011868:Radioisotopes