Edwards PET, Parsons GR, Myers KH. The economic value of viewing migratory shorebirds on the Delaware Bay: an application of the single-site travel cost model using on-site data. Hum Dimens Wildl. 2011;16(6):435-44. doi: 10.1080/10871209.2011.608180
Garcia-Alvarez A, Garcia-Albeniz X, Esteve J, Rovira M, Bosch X. Cardiotoxicity of tyrosine-kinase-targeting drugs. Cardiovasc Hematol Agents Med Chem. 2010 Jan;8(1):11-21.