diff --git a/database/migrations/2024_12_27_060234_create_studies_table.php b/database/migrations/2024_12_27_060234_create_studies_table.php
index b1ec8ac..0a46b82 100644
--- a/database/migrations/2024_12_27_060234_create_studies_table.php
+++ b/database/migrations/2024_12_27_060234_create_studies_table.php
@@ -14,7 +14,10 @@ public function up(): void
     {
         Schema::create('studies', function (Blueprint $table) {
             $table->id();
-            $table->foreignIdFor(DicomServer::class)->index();
+            $table->unsignedBigInteger('dicom_server_id')->index();
+            $table->unsignedBigInteger('institute_id')->index();
+            $table->unsignedBigInteger('facility_id')->nullable();
+
             $table->unsignedTinyInteger('priority')->default(Priority::Routine);
             $table->unsignedTinyInteger('study_status')->default(StudyLevelStatus::Pending->value);
             $table->unsignedTinyInteger('report_status')->default(ReportStatus::Unread->value);
@@ -35,6 +38,10 @@ public function up(): void
             $table->string('modality', 4)->nullable();
 
             $table->string('referring_physician_name')->nullable();
+            $table->unsignedSmallInteger('image_count')->nullable();
+            $table->unsignedSmallInteger('series_count')->nullable();
+            $table->unsignedInteger('disk_size')->nullable();
+
             $table->timestamp('study_date');
             $table->timestamp('received_at');
             $table->timestamp('assigned_at')->nullable();
@@ -43,19 +50,12 @@ public function up(): void
             $table->timestamp('approved_at')->nullable();
             $table->timestamp('archived_at')->nullable();
 
-            $table->unsignedSmallInteger('image_count')->nullable();
-            $table->unsignedSmallInteger('series_count')->nullable();
-            $table->unsignedInteger('disk_size')->nullable();
-
             // $table->unsignedBigInteger('assigned_physician_id')->nullable();
             $table->unsignedBigInteger('locking_physician_id')->nullable();
             $table->unsignedBigInteger('reading_physician_id')->nullable();
             $table->unsignedBigInteger('approving_physician_id')->nullable();
             $table->unsignedBigInteger('clinician_id')->nullable();
 
-            $table->unsignedBigInteger('institute_id');
-            $table->unsignedBigInteger('facility_id')->nullable();
-
             $table->timestamps();
 
             $table->unique(['dicom_server_id', 'orthanc_uuid']);