Flowchart was not attached
Authors have approval from the department and institute, but they say their research work was not reviewed.
The authors need to assess the cytotoxicity of Purslane extract and NNK doses. They should perform either an LD50 test or an in vitro assay, such as the MTT assay, to determine the half maximal inhibitory concentration (IC50).
The authors did not address the risks of their work.