The absence of evidence is not the same as evidence for absence!
Bramness
Jørgen G
JG
Skurtveit
Svetlana
S
Gustavsen
Ingebjørg
I
Mørland
Jørg
J
D000661:Amphetamine / Q000097:blood*; D019969:Amphetamine-Related Disorders / Q000175:diagnosis*; D001334:Automobile Driving / Q000331:legislation & jurisprudence*; D000697:Central Nervous System Stimulants / Q000097:blood*; D006801:Humans; D013223:Statistics as Topic; D015813:Substance Abuse Detection / Q000379:methods
D000697:Central Nervous System Stimulants; D000661:Amphetamine