TY - RPRT TI - A silver-free, single-sheet imaging medium based on acid amplification. AU - John L Marshall AU - Stephen J Telfer AU - Michael A Young AU - Edward P Lindholm AU - Richard A Minns AU - Larry Takiff PY - 2002 DO - 10.1126/science.1074583 UR - https://pubmed.ncbi.nlm.nih.gov/12169657/ ID - 12169657 ER -