[Orphan drugs: drugs for rare diseases].
Schenk
Maren
M
D003362:Cost-Benefit Analysis; D017277:Drug Approval / Q000191:economics / Q000331:legislation & jurisprudence; D016527:Drug Costs / Q000706:statistics & numerical data; D015195:Drug Design; D055808:Drug Discovery / Q000191:economics / Q000331:legislation & jurisprudence; D005858:Germany; D006801:Humans; D009965:Orphan Drug Production / Q000191:economics; D035583:Rare Diseases / Q000188:drug therapy* / Q000453:epidemiology; D014481:United States