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WHO Director-General Gro Harlem Brundtland, a Norwegian physician and politician, is renowned for her contributions to global health and sustainable development. As the head of the World Health Organization (WHO) from 1998 to 2003, she championed the concept of "Health for All" and emphasized the importance of addressing social and environmental determinants of health. Her work laid the foundation for the organization's focus on health equity and universal health coverage.