'Just a scratch': harmless, but not necessarily trivial.
Walsh
T S
TS
Armstrong
I R
IR
D000368:Aged; D015760:Alfentanil / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009666:Nose; D011183:Postoperative Complications / Q000139:chemically induced*; D011537:Pruritus / Q000139:chemically induced*
D015760:Alfentanil