All medical studies are not alike. Some are of higher quality than others, and the conclusions they reach need to be evaluated based on some principles of good research. Here we take a look at some warning signs of bad or unreliable studies.

https://en.wikipedia.org/wiki/Replication_crisis

https://www.wired.com/story/social-science-reproducibility

http://www.sciencemag.org/news/2017/01/rigorous-replication-effort-succeeds-just-two-five-cancer-papers

https://en.wikipedia.org/wiki/Andrew_Wakefield

https://en.wikipedia.org/wiki/Hwang_Woo-suk#Controversies

https://en.wikipedia.org/wiki/Yoshiki_Sasai

https://en.wikipedia.org/wiki/Data_dredging

https://www.youtube.com/watch?v=Gx0fAjNHb1M

https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1002106

https://www.palain.com/?page_id=358