“…Economic studies for rFSH have been published in Spain ( Balasch and Barri, 2001 , Barri et al, 2002 , Bosch and Pellicer, 2005 , Hernandez Torres et al, 2015 , Lorente et al, 2013 , Romeu et al, 2003 , Ruiz-Balda et al, 2005 , Slof, 2010 , Wex-Wechowski, 2011 ). On the whole, these studies looked at younger populations than the present study, and therefore the mean dose of rFSH required (IU) was lower.…”