Analysis of information sources in references of the Wikipedia article "梅毒" in Chinese language version.
The United States revealed on Friday that the government conducted medical experiments in the 1940s in which doctors infected soldiers, prisoners and mental patients in Guatemala with syphilis and other sexually transmitted diseases.
The United States revealed on Friday that the government conducted medical experiments in the 1940s in which doctors infected soldiers, prisoners and mental patients in Guatemala with syphilis and other sexually transmitted diseases.