As per reports, it has been revealed that Human Rights Watch (HRW), a New York City advocacy group has questioned the ethics of a Chinese origin study that has been published in journal Science. The advocacy group has also used the same forum, which means the same journal to ask about the procedure being used by the Chinese team.

In return, the Chinese researchers have defended that they have not adopted even a single unethical way to do their research. They have also got support from bioethicists, who are based in China and the United States.

The Chinese research was being led by Yan-Xue Xue from Peking University, Beijing. They were testing a psychological technique, by which they can reduce the cravings of drug addiction. The experiment was carried out in two stages, one involved mice and others involved humans.

The HRW has blamed the researchers for second part of experiment, the one, which is being done on humans. The blame has given birth to many controversies as some are saying that the claims are unfair and others have been proposing that the blame has revived the old concerns. One of the persons, who supports Chinese research said, "The research the authors conducted is of social value and there is no possible harm beyond the minimum. I am sorry to say Amon's criticism is unfair”.