1. Arsenious acid chemotherapy is considered effective on treating moderate or advanced liver cancer, but its utilization following liver transplantation remains few.

2. The paper discusses the solubility of the arsenious sulfide in the nonoxidizahle strong acids. alkaline solution by way of the experiment.

3. Intravenous arsenious acid chemotherapy can delay tumor recurrence and prolong survival in liver transplant patients with HCC extending Milan criteria.

4. The paper discusses the solubility of the arsenious sulfide in the nonoxidizahle strong acids.

5. It is put forth that the arsenious Sulfide can't dissolve in the nonoxidizable strong acids. but can dissolve easily in the alkaline solution because of existence of hydrolytic equilibrium.

6. OBJECTIVE:To explore the role of arsenious acid on tumor recurrence in liver transplant patients with primary HCC extending Milan criteria.

7. Objective:To evaluate the safety and efficacy of combining radiofrequency ablation(RFA) with arsenious acid(AA) locally to treat liver VX2 tumor in rabbits, and to explore its mechanism.

8. Objective:To observe the therapeutic effects and side-effects of thalidomide combined with arsenious oxide and retinoic acid for the treatment of low-risk myelodysplastic syndromes(MDS).