Article: Traish et al. (2019) on serum T levels

Just spotted this article from Jan 2019 by A. Traish of Boston University who has previously published interesting papers on 5ARIs:

Do 5α-Reductase Inhibitors Raise Circulating Serum Testosterone Levels? A Comprehensive Review and Meta-Analysis to Explaining Paradoxical Results
Conclusion: “5α-RI therapy is not associated with consistent and significant increases in serum T levels.”

I can speak that while on propecia my serum Testosterone was almost doubled both times I took it