TY - RPRT TI - Scanner performance to overcome efficiency problems in three-dimensional scintigraphy by gamma-gamma-coincidences. AU - H Helmers AU - H von Boetticher AU - I Schmitz-Feuerhake PY - 1979 DO - 10.1088/0031-9155/24/5/016 UR - https://pubmed.ncbi.nlm.nih.gov/515173/ ID - 515173 ER -