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机构:
Univ Heidelberg Hosp, Inst Publ Hlth, Heidelberg, Germany
INDEPTH Network, Accra, Ghana
Univ Witwatersrand, Sch Publ Hlth, ZA-2050 Johannesburg, South Africa
Hanoi Med Sch, Fac Publ Hlth, Hanoi, Vietnam Univ Med Ctr Hamburg Eppendorf, Inst Med Biometry & Epidemiol, Martinistr 52, D-20246 Hamburg, Germany