Not sure where to post this, but given my profession I enjoy reading studies and I most enjoy peer reviewed studies. I have found a few that may apply to this bored but I figured I would post this one. This peer reviewed article covers TRT for male hypogonadism and specifically the pharmacology and efficacy of topical/transdermal, patch/transdermal, transbuccal (inner-check), oral, intramuscular and subcutaneous implants. In addition what may be next. I will not post any further studies or peer reviewed articles if it is not desired here. Just thought this would be a fun read.
note sucks I can not upload the pdf and not sure if linking outside is ok (as I could host the pdf on one of my websites). Which sucks because the figures are important as it shows study results that are being referenced.
References
Seftel, A. (2007). Testosterone replacement therapy for male hypogonadism: Part III. Pharmacologic and clinical profiles, monitoring, safety issues, and potential future agents. International Journal Of Impotence Research, 19(1), 2-24. doi:10.1038/sj.ijir.3901366