The WHO/HAI methodology for measuring medicine prices relies on data that are collected through visits to medicines outlets in the public sector, the private sector and any other sectors that serve as important medicine dispensing points (. NGOs, mission hospitals). For each medicine included in the survey (a standard “basket” of 50 medicines is recommended), information on the final price of both the originator brand and the lowest-priced generic equivalent found at each medicine outlet is sought. Data on government procurement prices are also collected, as are data on add-on costs (. the incremental charges that added to medicines as.