abstract
adult
air
asian
asthma
background
breathing
bronchitis
cannula
care
chronic
clinic
concept
deficiency
disease
disorder
ethnicity
female
gas
health
healthcare
hospital
hypoxia
ideas
illness
infection
medical
medicare
medicine
mountain
mouth
nose
obstructive
oxygen
patient
people
person
pneumonia
pulmonary
rarefied
recovery
rehabilitation
respiratory
starvation
technical
technology
therapy
treatment
tube
unrecognizable
ventilation
woman