ALT A young man looks back over his shoulder in the middle of a long, straight, two-lane highway leading towards trees and a mountain ahead.
ALT A group of four people stand at the edge of a cliff overlooking a valley and far off hills at sunset. Their backs are to the camera and their arms are supportively wrapped around each other's shoulders.
ALT A young man looks back over his shoulder in the middle of a long, straight, two-lane highway leading towards trees and a mountain ahead.
ALT A bright burst of sunlight shines through the branches in a dark, dense redwood forest.
ALT A bright burst of sunlight shines through the branches in a dark, dense redwood forest.
ALT four people stand in silhouette on a hill overlooking a vista at sunset, with arms wrapped around each other's backs in support.
ALT A bright burst of sunlight shines through the branches in a dark, dense redwood forest.
ALT four people stand in silhouette on a hill overlooking a vista at sunset, with arms wrapped around each other's backs in support.
ALT Artistic interpretation of bronchial branches in shades of blue and pink, on a white background.
ALT four people stand in silhouette on a hill overlooking a vista at sunset, with arms wrapped around each other's backs in support.
ALT A bright burst of sunlight shines through the branches in a dark, dense redwood forest.
ALT four people stand in silhouette on a hill overlooking a vista at sunset, with arms wrapped around each other's backs in support.
ALT A woman sits alone at the end of a dock, facing out toward the water.
ALT Artistic interpretation of bronchial branches in shades of blue and pink, on a white background.
ALT A bright burst of sunlight shines through the branches in a dark, dense redwood forest.
ALT Headshot of Dr. Yelizaveta Sher.
ALT A woman sits alone at the end of a dock, facing out toward the water.
ALT four people stand in silhouette on a hill overlooking a vista at sunset, with arms wrapped around each other's backs in support.