Less work hours means less experience but not obligatorily more errors

https://www.washingtonpost.com/national/health-science/some-new-doctors-are-working-30-hour-shifts-at-hospitals-around-the-us/2015/10/28/ab7e8948-7b83-11e5-beba-927fd8634498_story.html?wprss=rss_health-science

http://www.washingtonpost.com/wp-dyn/content/article/2010/03/17/AR2010031704006.html