@base .
a ;
.
a ;
"2163-940X" ;
.
a .
a , , ;
, , ;
"Open journal of respiratory diseases." ;
;
;
;
"2163-940X" ;
;
;
"2163-940X" ;
;
"2163-940X" ;
"Open journal of respiratory diseases (Print)" , "Open journal of respiratory diseases." ;
;
"http://www.scirp.org/journal/ojrd/" .
.
a ;
"2163-940X" ;
.
a , ;
"Open journal of respiratory diseases (Print)" .
a ;
;
"20210206231200.0"^^ ;
;
.
"California" .