id	keyword
biomedich-91	diclofenac
biomedich-91	tramadol
biomedich-91	liver
biomedich-91	rats
biomedich-91	control
biomedich-91	study
biomedich-91	pain
biomedich-91	effects
biomedich-91	serum
biomedich-91	levels
biomedich-91	hepatotoxic