query("SELECT * FROM departments")->fetchAll(PDO::FETCH_ASSOC);
// Fetch Doctors
$doctors = $db->query("SELECT * FROM doctors")->fetchAll(PDO::FETCH_ASSOC);
// Fetch Patients (Limit 50 for initial load, preferably use AJAX for real search)
$patients = $db->query("SELECT * FROM patients ORDER BY id DESC LIMIT 50")->fetchAll(PDO::FETCH_ASSOC);
?>