This is a "connection" page, showing publications co-authored by Ethan Halpern and Patrick O'Kane.
Halpern EJ, Frauscher F, Strup SE, Nazarian LN, O'Kane P, Gomella LG. Prostate: high-frequency Doppler US imaging for cancer detection. Radiology. 2002 Oct; 225(1):71-7.
Halpern EJ, Frauscher F, Forsberg F, Strup SE, Nazarian LN, O'Kane P, Gomella LG. High-frequency Doppler US of the prostate: effect of patient position. Radiology. 2002 Mar; 222(3):634-9.