Two elements of the story that show this research is credible are:
The American Society for Reproductive Medicine is a society of experts on the issue of reproduction. If a study is presented from them, it means that experts were behind it which improves credibility.
The fact that it was peer-reviewed gives it the highest credibility because research that is peer-reviewed and found to be true is credible as it would have bee repeated by others.
Find out more on the importance of a peer review at https://brainly.com/question/4688605.