rrs significantly higher than unity were found for cancer of the lip ( 1.92 ) , malignant melanoma , and carcinoma of the skin in the head and neck region ( 1.39 and 1.15 , respectively ) , multiple myeloma ( 1.20 ) , and cancer of the stomach ( 1.07 ) .
C0153340
cancer of the lip
C0460004
head and neck region