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Registrations concerning new international multicenter clinical trials sponsored by pharmaceutical companies in South American countries from 2010 to 2020. (A) Number of new cancer clinical trials registrations per year in South America, 2010–2020. (B) Percentage of new cancer clinical trial registrations per country in South America, 2010–2020: * Ecuador (5), Uruguay (2), Venezuela (2) and Paraguay (1). Source: clinicaltrials.gov.
