select fbs_medical.CategoryId,(MesId+0) as MesId,Title,posttime,fbs_save.passeasy from fbs_medical,fbs_save where fbs_medical.CategoryId=fbs_save.CategoryId and fbs_medical.DispId=fbs_save.DispId and fbs_medical.CategoryId in('E20','E24','E25','E26') and fbs_medical.DispId=21 order by Posttime desc limit 0,6