Vogel L C, Sjoerdsma A C, Swinkels W J, W'Oigo H O
Trop Geogr Med. 1979 Sep;31(3):suppl 23-31.
Many of the recommendations, resulting from the previous study, to improve efficiency and to reduce waiting time and queueing, were put into practice in 1970 and evaluated in 1972. Most changes turned out to be improvements by all indicators, but some were not and several resulted in unforeseen sideeffects. Moreover the modified system proved to be vulnerable as it required rigorous coordination, greater motivation and stricter discipline among staff as well some extra material inputs.
先前研究提出的许多旨在提高效率、减少等待时间和排队现象的建议于1970年付诸实践，并于1972年进行了评估。从所有指标来看，大多数变革最终带来了改善，但有些变革并非如此，还有几项变革产生了意想不到的副作用。此外，事实证明，修改后的系统很脆弱，因为它需要员工之间进行严格的协调、更高的积极性和更严格的纪律，以及一些额外的物质投入。
