Payesh2009; 8: 235-244Accepted for publication: 19 August 2007[EPub a head of print-11 Jul. 2009] Objective(s): To calculate the costs of the radiology ward by step-down method in Amir Alam hospital. Tehran. Iran. https://www.markymarkscott.com/product-category/4n-84n-light-neutral-brown/