21 Research Methodology • Respondents were asked about the current and future market growth rates, market shares by diagnostic methods, by treatment type, by disease indication, by route of administration, by therapeutic class, by end user, by company and by region . Removing the outlier responses, the geometric mean of growth estimates and supplier wise revenue shares generated across various segments were considered, to arrive at the final revenue shares . Revenue shares generated across various segments were further triangulated from other stakeholders depending upon the type o f head and neck cancer therapeutics . Methodology Followed for Calculation of Market Shares : Market shares by diagnostic methods, by treatment type, by disease indication, by route of administration, by therapeutic class, by end user, by company and by region were calculated based on the responses received through primary surveys with industry experts, in which the respondents were asked about the market shares or revenue generated from various type of head and neck cancer therapeutics . The final shares were calculated by taking the geometric mean of the responses gathered from key opinion leaders after eliminating the outliers . Methodology Followed for Forecasting : • TechSci Research performed periodical checks on data collected through the surveys with logic checks and analyzed the survey results in SPSS/Tableau Software . • Data triangulation techniques were applied to fill the gaps and to present a more meaningful picture of the market . To forecast global head and neck cancer therapeutics market, TechSci Research used various forecast techniques such as : ✓ Moving Average ✓ Time Series Analysis ✓ Regression Analysis ✓ Econometric and Judgmental Analysis