Baum J (1990). Clinical applications of low flow and closed circuit anesthesia. Acta Anaesthesiologica Belgica 41(3): 239–47

Baum JA, Aitkenhead AR (1995). Low-flow anaesthesia. Anaesthesia 50 (Suppl): 37–44

GE Healthcare website [online; accessed 06/06/14]

Kennedy RR, French RA (2014). A ten-year audit of fresh gas flows in a New Zealand hospital: the influence of the introduction of automated agent delivery and comparisons with other hospitals. Anaesthesia and Intensive Care 42(1): 65–72

Lucangelo U, Garufi G, Marras E et al. (2014). End-tidal versus manually-controlled low-flow anaesthesia. Journal of Clinical Monitoring and Computing 28(2): 117–121

Nunn G (2008). Low-flow anaesthesia. Continuing Education in Anaesthesia, Critical Care and Pain 8(1): 1–4

Pandit JJ, Cook TM, Jonker WR, O'Sullivan E, on behalf of the 5th National Audit Project (NAP5) of the Royal College of Anaesthetists and the Association of Anaesthetists of Great Britain, Ireland (2013). A national survey of anaesthetists (NAP5 Baseline) to estimate an annual incidence of accidental awareness during general anaesthesia in the UK. British Journal of Anaesthesia 110(4): 501–9

Paulsen AW (2006) Essentials of Anesthesia Delivery. Chapter 62 in Medical Devices and Systems. Ed: Bronzino JD. 3rd edition

Potdar MP, Kamat, LL, Save MP (2014). Cost efficiency of target-controlled inhalational anesthesia. Journal of Anaesthesiology Clinical Pharmacology 30(2): 222–227

Schober P, Loer SA (2006). Closed system anaesthesia – historical aspects and recent developments. European Journal of Anaesthesiology 23(11): 914–920

Sieber TJ, Frei CW, Derighetti M et al. (2000) Model-based automatic feedback control versus human control of end-tidal isoflurane concentration using low-flow anaesthesia. British Journal of Anaesthesia 85(6): 818–25

Singaravelu S, Barclay P (2013). Automated control of end-tidal inhalation anaesthetic concentration using the GE Aisys CarestationTM. British Journal of Anaesthesia 110(4): 561–6

Tay S, Weinberg L, Peyton P et al. (2013) Financial and environmental costs of manual versus automated control of end-tidal gas concentrations. Anaesthesia and Intensive Care 41(1): 95–101