fsh and hcg dual therapy

I've only started researching fsh so probably a bit cheeky to ask without making more effort. Fertility aside, why is it beneficial? Effect of TRT vs hCG/FSH on upstream hormone pathways. This post covers some of it. I'll have to read it more clearly, and generally some extra info, to see the...

024 Dual Therapy with rFSH and HCG Results in a Significantly Shorter Time to Return of Spermatogenesis than Combination HCG and Clomiphene (2021) K. Campbell, J. Sullivan, R. Valero Carrion, J. Kraus, B. Stocks, A. Lawrence, L. Lipshultz Introduction: The use of testosterone replacement...