@base .
a ;
"2331-8945" ;
.
a .
a ;
"2331-8880" ;
.
a ;
;
"20210206214000.0"^^ ;
;
.
a ;
.
a , ;
"Universal journal of public health (Online)" .
.
"California" .
a , , ;
, , ;
"Universal journal of public health." ;
;
;
;
"2331-8945" ;
;
;
"2331-8945" ;
;
"2331-8945" ;
"Universal journal of public health." , "Universal journal of public health (Online)" ;
;
"http://www.hrpub.org/journals/jour_archive.php?id=76" .