[1] Carter T. The Need for International Seafarer Medical Fitness Standards, Int. Marit. Health, 2009; 60: 1-5.

 [2] Holmer I, Gavhed D. Classification of metabolic and respiratory demands in fire-fighting activities with extreme workloads. Applied Ergonomics. 2007; 38: 45-52.

 [3] Grimsmo-Powney H, Harris EC, Reading I, Coggon D. Occupational health needs of commercial fishermen in South West England. Occup Med (Lond). 2010; 60: 49-53.

 [4] ILO Convention on Work in Fishing 2007 (No. 188) (Articles 3, 4, 10) and IMO STCW-F (Reg 1 2.1).

 [5] the International Recommendations for Colour Vision Requirements for Transport by the Commission Internationale de l’Eclairage (CIE-143-2001).

 [6] Bull N. Time for revision of seafarers vision testing? Int Marit Health. 2008; 59: 124-131.

 [7] Carter T. Mapping the knowledge base of maritime health: 3 illness and injury in seafarers. Int. marit. Health. 2011; 62: 224-235.

 Carter T. Mapping the knowledge base of maritime health: 4 safety and performance at sea. Int. marit. Health. 2011; 62: 236-244.

 [8] Charlton J et al. The influence of chronic illness on crash involvement of motor vehicle drivers (2nd Edition, 2010). Accident Research Centre Report 300, Monash University Australia.- www.monash.edu.au/miri/research/reports/muarc300.pdf, (accessed 02 05 12)

 [9] Carter T. Fitness to Drive: a guide for health professionals. Royal Society of Medicine Press, 2006.

 [10] International Congress of Occupational Health. Code of Ethics. http://www.icohweb.org/core_docs/code_ethics_eng.pdf (accessed 09 05 12)

 [11] ILO/IMO Guidelines on seafarer medical examinations 2012. (Approval of text in progress).

 [12] ILO Maritime Labour Convention, 2006.

 [13] IMO Convention on Standards of Training, Certification and Watchkeeping, 1978, as amended (STCW Convention) 2012.

 [14] IL0/WHO 1997 Guidelines for Conducting Pre-sea and Periodic Medical Fitness examinations. http://ilo-mirror.library.cornell.edu/public/english/dialogue/sector/techmeet/ilowho97/meden2.htm (accessed 09 05 12).

 [15] ILO/IMO Guidelines on seafarer medical examinations 2012. (Approval of text in progress).

 [16] Standards for a number of countries are available on their maritime authority websites.

 [17] Roberts SE, Jaremin B. Cardiovascular disease mortality in British merchant shipping and among British seafarers ashore in Britain. Int Marit Health. 2010; 62: 107-116.

[18] A speech recognition test is at http://www.actiononhearingloss.org.uk/your-hearing/look-after-your-hearing/check-your-hearing/take-the-check.aspx (accessed 29 04 2012)