Fig. 3

The clustering and co-occurrence of terms in the title and abstract fields of publications related to malnutrition and chronic kidney disease. A map of the clusters revealed 169 terms that occurred at least 30 times, which were categorized into three separate clusters. The size of the node and the word on the map represented the frequency of co-occurrence, and the link between nodes indicated their relationship. Nodes that shared the same color were part of the same cluster