These meridians have been outlined , described , and manipulated by Chinese health practitioners for thousands of years ( Gao , 1997 ) .
These meridians have been are not identified structures known to Western medicine ( Eisenberg , 1995 ) .
These meridians have been outlined , described , and manipulated by Chinese health practitioners for thousands of years ( Gao , 1997 ) , and are not identified structures known to Western medicine ( Eisenberg , 1995 ) .