Related Questions

Many people to improve or reconstruct their body parts opt plastic surgery. When people think of plastic surgery, they only think of the perfectly smoothed, flawless result but there are tons of risks involved in it. Millions of cosmetic procedures are performed each years, and many without incident. Plastic Surgery is not cheap but costs tens of thousands of dollars. There are studies that prove that there are many complications involved in this to human health. Which of the following, if true, would weaken the studies conclusion?