N Hedley

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Ninety-six confirmed heroin addicts requesting a heroin maintenance prescription were randomly allocated to treatment with injectable heroin or oral methadone. Progress was monitored throughout the next 12 months by research workers operating independently of the clinic. Heroin can be seen as maintaining the status quo, with the majority continuing to(More)
  • H Aasen, N Hedley, Tromp-Van Meerveld
  • 2010
In this paper we introduce and discuss a new approach to the visualization of transient groundwater responses on hillslopes in an effort to support improved conceptual understanding of complex hydrological processes. This project provides an alternative geovisualization interface that enables experts and students to perceive this complex phenomenon, while(More)
There is wide variability in the methods of follow up of patients with colorectal cancer. For the majority of patients follow up comprises regular clinical assessment and measurement of carcinoembryonic antigen (CEA) with interval colonoscopy. Regular CT examinations will additionally detect distant disease such as liver and pulmonary metastases as well as(More)
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