Write SQL query to solve given problem: What is the shipping address for the sales order "43873"?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.ShipToAddressID FROM SalesOrderHeader AS T1 INNER JOIN Address AS T2 ON T1.BillToAddressID = T2.AddressID WHERE T1.SalesOrderID = 43873 GROUP BY T1.ShipToAddressID