TY - RPRT TI - A program system for interactive measurements on digitized cell images. AU - J Holmquist AU - E Bengtsson AU - O Eriksson AU - B Stenkvist PY - 1977 DO - 10.1177/25.7.330717 UR - https://pubmed.ncbi.nlm.nih.gov/330717/ ID - 330717 ER -