diff --git a/IRaCIS.Core.Application/Service/Visit/DTO/PatientViewModel.cs b/IRaCIS.Core.Application/Service/Visit/DTO/PatientViewModel.cs
index 5d6765990..6c44d1ba3 100644
--- a/IRaCIS.Core.Application/Service/Visit/DTO/PatientViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Visit/DTO/PatientViewModel.cs
@@ -1069,7 +1069,7 @@ namespace IRaCIS.Application.Contracts
 
         public List<SCPStudyHospitalGroupInfo> HospitalGroupList { get; set; }
 
-        public List<HospitalGroupInfo> CurrentUserHospitalGroupList { get; set; }
+        public List<HospitalGroupInfo> CurrentUserHospitalGroupList { get; set; } = new List<HospitalGroupInfo>();
 
         public List<SCPStudyHospitalGroupInfo> ViewHospitalGroupList => HospitalGroupList.Where(t => CurrentUserHospitalGroupList.Any(c => c.Id == t.Id)).ToList();
 
diff --git a/IRaCIS.Core.Domain/Image/SCPStudy.cs b/IRaCIS.Core.Domain/Image/SCPStudy.cs
index ad69ac672..59a352c51 100644
--- a/IRaCIS.Core.Domain/Image/SCPStudy.cs
+++ b/IRaCIS.Core.Domain/Image/SCPStudy.cs
@@ -80,8 +80,11 @@ public class SCPStudy : BaseFullDeleteAuditEntity, IEntitySeqId
 public class SCPStudyHospitalGroup : BaseFullAuditEntity
 {
     #region MyRegion
+    [ForeignKey("HospitalGroupId")]
     [JsonIgnore]
     public HospitalGroup HospitalGroup { get; set; }
+
+    [ForeignKey("SCPStudyId")]
     [JsonIgnore]
     public SCPStudy SCPStudy { get; set; }
 
diff --git a/IRaCIS.Core.Infra.EFCore/EntityConfigration/ImageConfigration.cs b/IRaCIS.Core.Infra.EFCore/EntityConfigration/ImageConfigration.cs
index 1d3a4a86d..fc1cb27cf 100644
--- a/IRaCIS.Core.Infra.EFCore/EntityConfigration/ImageConfigration.cs
+++ b/IRaCIS.Core.Infra.EFCore/EntityConfigration/ImageConfigration.cs
@@ -91,6 +91,8 @@ public class SCPStudyConfigration : IEntityTypeConfiguration<SCPStudy>
 
         builder.HasMany(s => s.InstanceList).WithOne(se => se.SCPStudy).HasForeignKey(se => se.StudyId).HasPrincipalKey(st => st.Id);
 
+        builder.HasMany(s => s.HospitalGroupList).WithOne(se => se.SCPStudy).HasForeignKey(se => se.SCPStudyId).HasPrincipalKey(st => st.Id);
+
 
     }
 }