TY - RPRT TI - Single-photon emission tomographic quantification in spherical objects: effects of object size and background. AU - F Zito AU - M C Gilardi AU - P Magnani AU - F Fazio PY - 1996 DO - 10.1007/bf00837624 UR - https://pubmed.ncbi.nlm.nih.gov/8599957/ ID - 8599957 ER -