Try using binoculars.
Costello
J
J
Crowther
S
S
Page
C
C
Morley
J
J
D000208:Acute Disease; D000318:Adrenergic beta-Agonists / Q000627:therapeutic use*; D001249:Asthma / Q000188:drug therapy*; D006801:Humans
D000318:Adrenergic beta-Agonists