Right, but that comment is not a study, it's just someone saying there's a study..... They might be wrong, mistaken, or whatever... Sorry if it seems churlish, but if you are after studies, that comment is not what you want.
Googling “microplastic cardiovascular” brought up both the study itself and a dozen news articles about it. In general, if you think a comment is low-quality because readers can’t easily find the source, you can help by posting that link yourself.
