Szukana fraza: [Tytuł = Psychosocial working conditions and active leisure\-time physical activity in middle\-aged us workers] lub [Autor = Choi, Bangkyoo] lub [Autor = Schnall, Peter L.] lub [Autor = Yang, Haiou] lub [Autor = Dobson, Marnie] lub [Autor = Landsbergis, Paul] lub [Autor = Israel, Leslie] lub [Autor = Karasek, Robert] lub [Autor = Baker, Dean]