diff --git a/app/DataTables/WorklistDataTable.php b/app/DataTables/WorklistDataTable.php
index b83072f..2d3d718 100644
--- a/app/DataTables/WorklistDataTable.php
+++ b/app/DataTables/WorklistDataTable.php
@@ -70,9 +70,9 @@ public function dataTable(QueryBuilder $query): EloquentDataTable
                 return self::dtFormat($study->received_at);
             })
             ->editColumn('show_study', function (Study $study) {
-                $btn = '<a href="#" data-id="' . _h($study->id) . '" class="btn btn-outline-facebook btn-xs showStudy">Show</a>';
-                $btn .= '<a href="' . route('staff.history.edit', $study->hash) . '" class="edit btn btn-primary btn-xs editStudy">Edit</a>';
-                $btn .= ' <a href="#" data-id="' . _h($study->id) . '" class="btn btn-outline-dribbble btn-xs show-assign">Assign</a>';
+                $btn = '<a href="#" data-id="' . _h($study->id) . '" class="btn btn-outline-facebook btn-xs showStudy"><i class="fa-light fa-circle-info me-1"></i>Show</a>';
+                $btn .= '<a href="' . route('staff.history.edit', $study->hash) . '" class="edit btn btn-outline-primary btn-xs"><i class="fa-light fa-pen-to-square me-1"></i>Edit</a>';
+                $btn .= ' <a href="#" data-id="' . _h($study->id) . '" class="btn btn-outline-youtube fw-light btn-xs show-assign"><i class="fa-light fa-user-doctor me-1"></i>Assign</a>';
                 $btn .= ' <a href="#" data-id="' . _h($study->id) . '" class="btn btn-danger btn-xs deleteStudy">Delete</a>';
 
                 return $btn;
diff --git a/app/Http/Controllers/Staff/StudyAssignmentController.php b/app/Http/Controllers/Staff/StudyAssignmentController.php
index 8942d46..8142eb9 100644
--- a/app/Http/Controllers/Staff/StudyAssignmentController.php
+++ b/app/Http/Controllers/Staff/StudyAssignmentController.php
@@ -5,17 +5,20 @@
 use App\DAL\Radiologists;
 use App\Http\Controllers\HashidControllerBase;
 use App\Http\Requests\AssignPhysicianRequest;
+use App\Models\Enums\Permission;
 use App\Models\Enums\ReportStatus;
 use App\Models\Enums\UserRole;
 use App\Models\Study;
 use App\Models\User;
 use App\Services\AuditTrail\Activity;
 use Carbon\Carbon;
+use Illuminate\Support\Facades\Cache;
 
 class StudyAssignmentController extends HashidControllerBase
 {
     public function show()
     {
+        abort_unless(auth()->user()->may(Permission::AssignPhysician), 403);
         $this->decodeKeys();
         $study = Study::with('assignedPhysician')->findOrFail($this->key);
         $rads = User::active()->role(UserRole::Radiologist)->get(['id', 'display_name', 'profile_photo_path', 'first_name', 'last_name', 'created_at']);
@@ -33,6 +36,7 @@ public function show()
 
     public function remove()
     {
+        abort_unless(auth()->user()->may(Permission::AssignPhysician), 403);
         $this->decodeKeys();
         $study = Study::with('assignedPhysician')->findOrFail($this->key);
         if ($study->assigned_physician_id !== null) {
@@ -49,6 +53,7 @@ public function remove()
 
     public function save(AssignPhysicianRequest $request)
     {
+        abort_unless(auth()->user()->may(Permission::AssignPhysician), 403);
         $this->decodeKeys();
         $study = Study::findOrFail($this->key);
         $rad = User::active()->findOrFail($request->input('rad_id'));
diff --git a/app/Models/Enums/Permission.php b/app/Models/Enums/Permission.php
index 78200cf..096f183 100644
--- a/app/Models/Enums/Permission.php
+++ b/app/Models/Enums/Permission.php
@@ -17,4 +17,6 @@ enum Permission: string
     case StudyNotesView = 'study_notes_view';
     case AttachmentUpload = 'attachment_upload';
     case AttachmentDownload = 'attachment_download';
+    case AssignPhysician = 'assign_physician';
+    case UnassignPhysician = 'unassign_physician';
 }
diff --git a/database/migrations/2025_01_07_904595_create_radiologists.php b/database/migrations/2025_01_07_904595_create_radiologists.php
new file mode 100644
index 0000000..a671c28
--- /dev/null
+++ b/database/migrations/2025_01_07_904595_create_radiologists.php
@@ -0,0 +1,28 @@
+<?php
+
+use App\Models\User;
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations
+     */
+    public function up(): void
+    {
+        Schema::create('radiologists', static function (Blueprint $table) {
+            $table->id();
+            $table->foreignIdFor(User::class)->unique()->constrained()->cascadeOnDelete();
+            $table->text('signature_img_path')->nullable();
+            $table->text('signature_text')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('radiologists');
+    }
+};
diff --git a/resources/views/staff/studies/show-details.blade.php b/resources/views/staff/studies/show-details.blade.php
index 6e44479..38f5ee8 100644
--- a/resources/views/staff/studies/show-details.blade.php
+++ b/resources/views/staff/studies/show-details.blade.php
@@ -18,7 +18,7 @@
 
     @include('staff.history.partials._history', ['details' => $study->details])
 
-    @if( $study->hasMedia(\App\Models\Study::MEDIA_COLLECTION) )
+    @if ( $study->hasMedia(\App\Models\Study::MEDIA_COLLECTION) )
         <div class="card shadow-none bg-transparent border">
             <div class="card-header">
                 Attachments