Here is an article from New England Journal of Medicine on Men from 60-81 dosed with .03mg/kg of body weight eod:
http://content.nejm.org/cgi/content/abstract/323/1/1
The eod dosing is an intresting factor given the claims made in another post on HGH today. Since I am in my late 50s the results on the geezers is of particular intrest to me.