sergio ricardo marques department of morphology and genetics, sao paulo federal university, brazil 55-1155764261, [email protected]; department of morphology and genetics, sao paulo federal university, brazil 55-1155764261, [email protected] sergio ajzen department of diagnosis by image, sao paulo federal university, brazil giuseppe d´ippolito department of diagnosis by image, sao paulo federal university, brazil luis alonso department of morphology and genetics, sao paulo federal university, brazil 55-1155764261, [email protected] sadao isotani institutes of physics, sao paulo federal university, brazil henrique lederman department of diagnosis by image, sao paulo federal university, brazil

M-L Ho G Moonis C F Halpin H D Curtin