In 1991, China promised the international community it would wipe out poliomyelitis by 1995. Starting from this year, the Ministry of Public Health is organizing an appraisal of this effort.by Our...
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In 1991, China promised the international community it would wipe out poliomyelitis by 1995. Starting from this year, the Ministry of Public Health is organizing an appraisal of this effort.by Our...