慢性非萎缩性胃炎 幽门螺杆菌感染 证候 类肝胃不和证 类肝胃郁热证 类脾胃虚弱证 类胃热内蕴证 chronic non-atrophic gastritis Hp infection syndrome classified syndrome of disharmony between the liver and stomach classified stagnated heat syndrome of the liver and stomach classified deficiency syndrome of the spleen and stomach classified syndrome o