“…Several phytochemicals were shown to have similar anticancer effects but without the unwanted side effects [ 34 , 35 ]. Among these phytochemicals is ZER, a compound with promising anticancer and antiproliferative effects on numerous tumors including cervical cancer [ 14 , 36 ], colon cancer [ 37 , 38 ], liver cancer [ 39 ], pancreatic cancer [ 40 ], lung cancer [ 41 ], leukemia [ 8 , 10 , 22 ], mammary cancer [ 23 , 24 , 42 ], melanoma [ 43 ], and skin cancer [ 44 ]. However, the effect of ZER on canine tumors is still not known.…”