Update app.py

app.py

@@ -13,7 +13,7 @@ def extract_study_timeline(text):
     timeline = {
         "Screening": int(screening.group(1)) if screening else None,
         "Treatment": int(treatment.group(1)) if treatment else None,
-        "Follow-Up": int(follow_up.group(1)) if follow_up else None
+        "Follow-Up": int(follow_up.group(1)) if follow_up else "Not Mentioned"  # Default to "Not Mentioned"
     }
     
     return timeline