SAYED, I. S. “INFLUENCE OF SOURCE-TO- COLLIMATOR DISTANCE ON IMAGE QUALITY IN SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT): A PHANTOM STUDY: INFLUENCE OF SOURCE-TO- COLLIMATOR DISTANCE ON SPECT IMAGE QUALITY”. INTERNATIONAL JOURNAL OF ALLIED HEALTH SCIENCES, vol. 4, no. 4, Feb. 2021, pp. 1683-92, doi:10.31436/ijahs.v4i4.464.