1. Brownell MD, Roos NP. Variation in length of stay as a measure of efficiency in Manitoba hospitals. CMAJ. 1995;152(5):675–82.
2. Bouwcollege (CBZ). Developments in the use of hospital beds. Part 1(Ontwikkelingen bedgebruik ziekenhuizen, deel 1) In Dutch, English summary. Utrecht: Netherlands Board for Hospital Facilities; 2003
3. Bouwcollege (CBZ). Developments in the use of hospital beds. Part 2 possibilities for reducing length of stay (Ontwikkelingen bedgebruik ziekenhuizen deel 2 Mogelijkheden voor de verkorting van de verpleegduur) In Dutch . Utrecht: Netherlands Board for Hospital Facilities; 2003.
4. Borghans I, Heijink R, Kool T, Lagoe RJ, Westert GP. Benchmarking and reducing length of stay in Dutch hospitals. BMC Health Serv Res. 2008;8:220.
5. Gyrd-Hansen D, Olsen KR, Sorensen TH. Socio-demographic patient profiles and hospital efficiency: does patient mix affect a hospital’s ability to perform? Health Policy. 2012;104(2):136–45.