[Regional inequalities in the consumption of opioid analgesics].
J J
JJ
Criado Alvarez
C
C
Romo Barrientos
J
J
Martínez Hernández
I
I
González Solana
D000701:Analgesics, Opioid / Q000008:administration & dosage*; D003710:Demography; D006801:Humans; D013030:Spain
D000701:Analgesics, Opioid