PubMed · 7001535
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D P Roberts. 1980. Holography.. https://pubmed.ncbi.nlm.nih.gov/7001535/
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In the past decade, significant progress has been made in the imaging of tumors, three dimensional (3D) treatment planning, and radiation treatment delivery. At this time one of the greatest challenges for conformal radiation therapy is the accurate delineation of tumor and target volumes. The physician encounters many uncertainties in the process of defining both tumor and target. The sources of these uncertainties are discussed, as well as the issues requiring study to reduce these uncertainties.
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Toronto physician Mel Borins, who has travelled extensively to developing countries to examine traditional healing practices, recently visited elders at an Ontario Indian reserve to learn more about native healing practices. He is concerned that much native knowledge about the use of herbs and plants for healing will be lost and steps should be taken to protect it. He is also worried about the possible extinction of useful medicinal plants as civilization encroaches on remote areas.