Original sentence: The introduction of IQOS was announced on June 26, 2014
Edited sentence: After the study was published, the heads of the three Swiss universities where the authors worked received letters from Phillip Morris, accusing the authors of faulty methodology, and subsequently the researchers were not willing to talk to a journalist.JAMA Internal Medicine, which published the study, described the letters as unusual and smacking of intimidation.One independent study of the iQOS criticized Phillip Morris, saying "Dancing around the definition of smoke to avoid indoor-smoking bans is unethical" and called for more independent research, saying "Smokers and non-smokers need accurate information about toxic compounds released in IQOS smoke.Phillip Morris also published an online academic counter-argument.The Campaign for Tobacco-Free Kids  the product, saying that it looks like the e-cigarettes which children use the most.The introduction of IQOS  was announced on June 26, 2014.This information should come from sources independent of the tobacco industry"