A helpful technique for cases of difficult venepuncture.
Okoro
J
J
Mahon
S
S
D001803:Blood Transfusion; D001815:Bloodletting / Q000379:methods*; D002406:Catheterization, Peripheral / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012965:Sodium Chloride
D012965:Sodium Chloride