TY - JOUR AN - 120 AU - Spry,P.G. AU - Johnson,C.A. AU - McKendrick,A.M. TI - Variability components of standard automated perimetry and frequency-doubling technology perimetry. JO - Invest Ophthalmol Vis Sci PY - 2001 VL - 42 SP - 1404-1410 M2 - 1404 ER -