This paper is written by Mytien Nguyen, Sarwat I. Chaudhry, Mayur M. Desai, et al 

This paper describes a cross-sectional study investigating the gender, racial, and ethnic diversity of NIH investigators in the last 30 years. This investigation found that, among PI’s receiving 3 or more research grants in this time period, female and Black PIs were significantly underrepresented. Read more about this here!