Brian Gibbs, Ph.D., OHSU vice president for equity and inclusion, (left) and John Hunter, M.D., FACS, executive vice president and CEO, OHSU health system, welcome the crowd to the first community-facing installment of a new lecture series in health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Dr. Nathalie Johnson welcomes a large crowd who came to hear Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, speak on health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Dr. Nathalie Johnson (right) greets a family member of Dr. DeNorval Unthank, the physician who a new health equity lectureship is named for. The first presenter of the new series was Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health. (OHSU/Kristyna Wentz-Graff)

Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, gave the first community-facing installment of a new lecture series in health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Over 750 people came to hear Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, speak about health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Over 750 people came to hear Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, speak about health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, gave the first community-facing installment of a new lecture series in health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, gave the first community-facing installment of a new lecture series in health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, gave the first community-facing installment of a new lecture series in health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)

Harvard sociologist David R. Williams, Ph.D., M.P.H., an internationally renowned scholar in the social determinants of health, gave the first community-facing installment of a new lecture series in health equity, Feb. 28, 2018 at Maranatha Church in Portland. (OHSU/Kristyna Wentz-Graff)