O'Hara Kelly Riskin
Ochi Hirotomo
Ochi Mistuo
Ochi Mitsuo
Odland Thomas L.
Oefinger Rory H.
Oliva Philip B.
Optelmed Ltd.
Orgin Medsystems, Inc.
Orr Terrence R.
Osteogenics, Inc.
Ou Honzen
Oxford Instruments Medical Limited
Oyen Duane
Ozawa Fumisada
Palermo Thomas
Pallikaris Ioannis G.
Pallin Samuel L.
Palme Donald F.
Pankratov Michail