Why Guinea-Bissau halted a controversial hepatitis vaccine trial for babies
Experts have said the US-funded trial would deny critical vaccines to thousands of infants.
原文出处：Al Jazeera （本文由聚合程序自动采集，版权归原作者所有）
Experts have said the US-funded trial would deny critical vaccines to thousands of infants.
原文出处：Al Jazeera （本文由聚合程序自动采集，版权归原作者所有）