自閉症児の認知発達とふり遊びについて--「心の理論メカニズム」と象徴機能との関連性

In the 1970s it was statistically proved that exposure to radon daughter products caused lung cancer in miners. High concentrations of radon daughters have since been found in houses. Any epidemiological radon study begun today is hampered because relevant exposure data are difficult to obtain owing... View More