Inhibition of polypeptide extract from scorpion venom on repopulation in Lewis lung adenocarcinoma during chemotherapy Inhibitive effect of polypeptide extract from scorpion venomon repopulation in H22 tumor cell during chemotherapy Effect of polypetide extract from scorpion venom(PESV) on expression of HIF-1α and SDF-1/CXCR4 in repopulating H22 tumour tissue during chemotherapy treatment Inhibition of polypeptide extract from scorpion venom on repopulation in Lewis lung adenocarcinoma during chemotherapy