TY - RPRT TI - Normal variability of static perimetric threshold values across the central visual field. AU - A Heijl AU - G Lindgren AU - J Olsson PY - 1987 DO - 10.1001/archopht.1987.01060110090039 UR - https://pubmed.ncbi.nlm.nih.gov/3675288/ ID - 3675288 ER -