@article{harper1997-9190286,
  author  = {Harper, J. D. and Wong, S. S. and Lieber, C. M. and Lansbury, P. T.},
  title   = {{Observation of metastable Abeta amyloid protofibrils by atomic force microscopy}},
  journal = {Chemistry \& biology},
  year    = {1997},
  doi     = {10.1016/s1074-5521(97)90255-6},
  pmid    = {9190286},
  url     = {https://doi.org/10.1016/s1074-5521(97)90255-6}
}