1. Baskett, P., Brit. Med. J., 1970, 2, 41.
2. Binning, R., Brit. Med. J., 1970, 3, 526.
3. Bracken, A., Brit. Med. J., 1968, 3, 715.
4. Snook, R., Brit. Med. J., 1969, 4, 348, 478.
5. Snook, R., International Seminar on Design Criteria for the Emergency Ambulance, Royal College of Surgeons, London, 1969.