@CONFERENCE\{IMM1991-02904, author = "A. Fr{\o}lich and B. F. Nielsen and J. Nielsen and K. Conradsen and P. McNair", title = "Does Quality Control Work Between Local Hospitals?", year = "1991", month = "jul", booktitle = "World Congress on Medical Physics and Biological Engineering", volume = "", series = "", editor = "M. Inoue", publisher = "", organization = "", address = "Kyoto, Japan", note = "Abstract", url = "http://www2.compute.dtu.dk/pubdb/pubs/2904-full.html" }