In vivo toxicity evaluation. Hematological index and biochemical blood analysis of the rat at 1, 15, 30, 45, and 60 days post scaffold implantation is compared to the control group that was not subjected to surgery. The results show the mean and SD of BUN, CREA, LDH, ALP, TP, ALB, Ca, Ph, RBC, HGB, HCT, PLT, WBC, neutrophils (NEUT), lymphocytes (LYMPH) and monocytes (MONO) at different time points post scaffold implantation.