Original sentence: " however, in the year 2017, United States National Library of Medicine(PMC - US National Institutes of Health) Publication claims that a Fact Sheet from WHO had several issues of neutral point of view  regarding IARC is the part of WHO and five of the six members of the  WHO Core Group regarding RF frequency adverse effect research, are having severe conflict of interest to International Commission on Non-Ionizing Radiation Protection (ICNIRP).In the year 2011, The World Health Organization states that "A large number of studies have been performed over the last two decades to assess whether mobile phones pose a potential health risk
Edited sentence: The World Health Organization states that "A large number of studies have been performed over the last two decades to assess whether mobile phones pose a potential health risk