Not true for endurance. For example, Morocco's distance running training programs have a lot of by medical teams:
http://run-down.com/guests/mv_morocco.php"They have a support team of three sport doctors, seven physiotherapists and complementary contracts with one cardiologist, one dentist and a laboratory for their different tests."
FFS, three (3) sports M.D.s!
Gourmi was pinged for ABP hematological anomalies in 2012 (probably got carried with Hgb levels and didn't stay within his parameters). All of his PBs including his fast 10 (27:02/2005), very fast 5 (12:50/2005) and NR marathon (2:05/2008) were all ran prior to the implementation of the ABP. So, he was able to dodge the rEPO tests during that period quite effectively.
Doper Erupe still ran good enough to take 3rd @ Houston in 2013. He tested positive for the sauce OOC in late 2012 after he ran his PB at that time of 2:05:37, which was an incredible jump of 4 mins faster than his best time one year earlier! (2:09:23).
His PB set in 2016 of 2:05:13 is very close to the 2012 time. He only served a measly 2 yrs for the EPO hit (a slap on the wrist)...so how do you know he didn't resume doping after his ban? Were you his coach? Once some of these athletes taste the sauce they're hooked and many will give it a second try after a ban and learn from their mistakes that got them caught in the first place. Unfortunately for some; once a doper always a doper.
https://en.m.wikipedia.org/wiki/Wilson_Loyanae_ErupeSome interesting stuff on Kenyan dopers: ?
https://youtu.be/WVZO-uKG16U