Who pays for ED drugs?
D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D006278:Medicare / Q000331:legislation & jurisprudence*; D008875:Middle Aged; D010726:Phosphodiesterase Inhibitors / Q000191:economics*; D011306:Prescription Fees; D014665:Vasodilator Agents / Q000191:economics*
D010726:Phosphodiesterase Inhibitors; D014665:Vasodilator Agents