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. 2021 Sep 15;25:334. doi: 10.1186/s13054-021-03752-w

Fig. 1.

Fig. 1

Phenotypes, subphenotypes, endotypes, and treatable traits. Examples of the potential methods for dividing the delirium phenotype into subphenotypes. This may be translated into endotypes, which depend on the characteristics of the subphenotype. Endotype identification may allow the development of treatments targeting specific traits. One person may possess more than one treatable trait