...
机译:Authors' reply to the letter from Dr. Kato
Harvard TH Chan Sch Publ Hlth, Takemi Program Int Hlth, Boston, MA 02115 USA;
Univ Tsukuba, Grad Sch Comprehens Human Sci, Ibaraki, Japan;
Harvard TH Chan Sch Publ Hlth, Dept Social & Behav Sci, Boston, MA USAUniv Tsukuba, Hlth Serv Res & Dev Ctr, Ibaraki, Japan;