Systematic Review of the Content and Methods of Empirical Psychological Research on LGBTQ and SGM Populations in the New MillenniumWalch, S. E., Bernal, D. R., Gibson, L., Murray, L., Thien, S., & Steinnecker, K. (2020). Systematic review of the content and methods of empirical psychological research on LGBTQ and SGM populations in the new millennium. Psychology of Sexual Orientation and Gender Diversity . Advanced online publication. doi:10.1037/sgd0000364.supp