I can't find the dataset "blood" mentioned in this paper:
https://www.researchgate.net/publication/332165231_Clustering_analysis_using_a_novel_locality-informed_grey_wolf-inspired_clustering_approach.
With 778 rows, however i found it in the repository:
https://archive.ics.uci.edu/ml/datasets/Blood+Transfusion+Service+Center.
with 748 rows, i am wondering if it is just a typing error? Else it would be a pleasure to give me the link of the dataset.