With the help of a personal computer we have subjected 1684 tumours of the central and peripheral nervous systems to a discriminant analysis to test whether the different brain tumours can be classified. By ascribing a coefficient value which belongs to a linear function to the objective criteria for each tumour these can be ordered in groups, and a classification is then possible. This has been termed discriminant analysis. Fifty histological characteristics were the criteria taken into consideration for each tumour. By using Bayes' formula with a correction for binomial distribution we obtained a correct diagnosis in 98% of the cases studied. The differential diagnosis with its percentage of probabilities is given by the computer. The mathematical fundaments are given. The valuability and precision of this method are discussed.

Histopathological diagnosis of brain tumours with the help of a computer: mathematical fundaments and practical application

This Special issue is devoted to providing, for the first time, an overview of national activities to research, practice, and implementation of Advance Care Planning around the world. It has been prepared in parallel to the 8th International Conference on Advance Care Planning, in Singapore May 2023 ([ [1] Ng R. ACP in cultural diversity: more similar than different. Zeitschrift Fur Evidenz und Wirtschaftlichkeit im Gesundheitswesen. 2023; Google Scholar ], all abstracts are available open access [ [2] BMJ supportive and palliative care. 2023;13(4). Online https://spcare.bmj.com/content/13/Suppl_4. Google Scholar ]). The Board of the International Advance Care Planning Society (www.acp-i.org) has been inspired by the Special Issue of the Journal of Evidence and Quality in Health Care (ZEFQ Vol. 171; Jun 2022) on shared decision-making from the 11th International Shared Decision Making Conference [ [3] Zeitschrift Für Evidenz. Fortbildung und Qualität im Gesundheitswesen. 2022;171. Google Scholar ], which took place in Kolding, Denmark in June 2022. 

Editorial: Advance Care Planning as Key to Person Centered Care: Evidence and Experiences, Programmes and Perspectives.

[Indications for cerebral angiography. Development of a Bayes-program as a decision aid (author's transl)].

Indications for cerebral angiography. Development of a Bayes-program as a decision aid

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[Indications for cerebral angiography. Development of a Bayes-program as a decision aid (author's transl)].

Indications for cerebral angiography. Development of a Bayes-program as a decision aid