Ballard is a surname of English origin. It likely derives from Middle English "ball,"meaning "white spot,"plus the suffix "-ard,"and would therefore mean "bald head.

Overview of the CCP4 suite and current developments
Color indexing
Stages of embryonic development of the zebrafish
Color indexing
Stages of embryonic development of the zebrafish.
Chronic Parkinsonism in humans due to a product of meperidine-analog synthesis
Generalizing the Hough transform to detect arbitrary shapes ☆
The incomplete natural history of mitochondria.
Ellipsometry and Polarized Light
Generalizing the Hough transform to detect arbitrary shapes