For instance, aiming at increasing the proportion of one-day surgeries, 126 new surgical procedures have been added to those that may be performed as day surgeries in 2011. The high share of highly paid specialists and low nurse-to-physician ratios create cost pressures, which could be aggravated if substantial increases in the wages of health care workers take place to retain them in the system. Although skill-mix arrangements likely depend on productivity considerations, health worker and patient preferences, and other economic and social factors, there is some evidence suggesting that certain tasks traditionally performed by physicians could be transferred to highly qualified nurses, without undermining the quality of care. Indeed, Hungarian physicians tend to perform medical and administrative tasks that could be carried out by nurses and other support personnel (Gal et al, 2003, Orosz and Hollo, 2001).