Fenoterol: confounding again.
Pearce
N
N
Grainger
J
J
Beasley
R
R
Crane
J
J
Burgess
C
C
D001249:Asthma / Q000188:drug therapy / Q000401:mortality*; D016022:Case-Control Studies; D002908:Chronic Disease; D015986:Confounding Factors, Epidemiologic; D004812:Epidemiologic Methods; D005280:Fenoterol / Q000627:therapeutic use*; D006801:Humans
D005280:Fenoterol