Table 2.

Objectives and Methodologies With Resources Utilized.

Statement of the Objective	Methodology	Resources Utilized
It is essential to determine which of the molecular pathways were commonly followed by the natural extracts to inhibit cancer and the various investigative methods to explore cell cytotoxicity and cell viability of cancer cells in the reviewed literature. Analysis was performed to explore as to which were more common phases that exhibited cell cycle arrest by natural extract.	Numerous studies were reviewed where different concentrations of various natural extracts can accomplish lethality of cancer cells. Extensive search was done on research articles related to natural extracts with potential to kill cancer cells. Different analytical articles were probed that furnished data on ingesting different natural extracts at intervals or as a single dose to cause an effective mortality of cancer cells. Analysis was done as per STROBE criteria.	PLoS One, Scientific Reports, Oncology Reports, Cancer Letters, Cancer Journal, Molecular Cancer and Therapeutics, Carcinogenesis, Planta Medicine

Abbreviation: STROBE, Strengthening the Reporting of Observational Studies in Epidemiology.