title: Accumulation of atmospheric radon in calcite caves.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D002118:Calcium; D006801:Humans; D007564:Japan; D011886:Radon / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D000396:Air Pollutants, Radioactive; D011886:Radon; D002118:Calcium