реализованы интерфейсы бизнес логики в контрактах

Polyclinic/PolyclinicContracts/BusinessLogicsContracts/IMedicamentLogic.cs

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+using PolyclinicContracts.BindingModels;
+using PolyclinicContracts.SearchModels;
+using PolyclinicContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PolyclinicContracts.BusinessLogicsContracts
+{
+    public interface IMedicamentLogic
+    {
+        List<MedicamentView>? ReadList(MedicamentSearchModel? model);
+        MedicamentView? ReadElement(MedicamentSearchModel model);
+        bool Create(MedicamentBindingModel model);
+        bool Update(MedicamentBindingModel model);
+        bool Delete(MedicamentBindingModel model);
+    }
+}

Polyclinic/PolyclinicContracts/BusinessLogicsContracts/IProcedureLogic.cs

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+using PolyclinicContracts.BindingModels;
+using PolyclinicContracts.SearchModels;
+using PolyclinicContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PolyclinicContracts.BusinessLogicsContracts
+{
+    public interface IProcedureLogic
+    {
+        List<ProcedureView>? ReadList(ProcedureSearchModel? model);
+        ProcedureView? ReadElement(ProcedureSearchModel model);
+        bool Create(ProcedureBindingModel model);
+        bool Update(ProcedureBindingModel model);
+        bool Delete(ProcedureBindingModel model);
+    }
+}

Polyclinic/PolyclinicContracts/BusinessLogicsContracts/IRecipeLogic.cs

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+using PolyclinicContracts.BindingModels;
+using PolyclinicContracts.SearchModels;
+using PolyclinicContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PolyclinicContracts.BusinessLogicsContracts
+{
+    public interface IRecipeLogic
+    {
+        List<RecipeView>? ReadList(RecipeSearchModel? model);
+        RecipeView? ReadElement(RecipeSearchModel model);
+        bool Create(RecipeBindingModel model);
+        bool Update(RecipeBindingModel model);
+        bool Delete(RecipeBindingModel model);
+    }
+}

Polyclinic/PolyclinicContracts/BusinessLogicsContracts/ISuretorLogic.cs

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+using PolyclinicContracts.BindingModels;
+using PolyclinicContracts.SearchModels;
+using PolyclinicContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PolyclinicContracts.BusinessLogicsContracts
+{
+    public interface ISuretorLogic
+    {
+        List<SuretorView>? ReadList(SuretorSearchModel? model);
+        SuretorView? ReadElement(SuretorSearchModel model);
+        bool Create(SuretorBindingModel model);
+        bool Update(SuretorBindingModel model);
+        bool Delete(SuretorBindingModel model);
+    }
+}