The Difference of Non-hypoxic Apnoea following Pre-oxygenation during Induction of General Anaesthesia in Children and in Adults;

Results: It was useful for promoting pulp vascular regeneration and preventing root resorption of replanting immature permanent teeth using local oxygen therapy and the local application of drug to isolated teeth.

The application of inhaled oxygen technique with an endoscopic facial mask in the painless gastroscopy;

Objective:To observe the therapeutic effects of Carbamide peroxide in treating acute blooding necrotizing Pancreatitis.

Different way of offering oxygen used to painless gastroscopy;