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Answer:
In the article titled "Game On," by Stephen Fraser, Doctors Gary Green and Freddie Fu claim that the use of stem cell treatment should be avoided before the required research is conducted.
Step-by-step explanation:
In reference to Bartolo Colón´s stem cell transplant to help him with a sports injury, the doctors explain that for that treatment to be properly given, there´s still research to be done so the FDA can approve it as a safe and effective process. Furthermore, the effectiveness of Colón´s transplant still has to be analyzed, as the outcome might have been influenced by his training and his natural healing abilities.