Style Error: American Chemical Society
Accessed date information should be included in electronic sources (my particular areas of interest for this are journal articles).
Style guide recommends (pg. 319):
Zloh, M.; Esposito, D.; Gibbons, W. A. Helical Net Plots and Lipid Favourable Surface Mapping of Transmembrane Helices of Integral Membrane Proteins: Aids to Structure Determination of Integral Membrane Proteins. Internet J. Chem. 2003, 6 (accessed April 29, 2019).
Zotero creates:
Zloh, M.; Esposito, D.; Gibbons, W. A. Helical Net Plots and Lipid Favourable Surface Mapping of Transmembrane Helices of Integral Membrane Proteins: Aids to Structure Determination of Integral Membrane Proteins. Internet J Chem 2003, 6.
Style guide recommends (pg. 319):
Zloh, M.; Esposito, D.; Gibbons, W. A. Helical Net Plots and Lipid Favourable Surface Mapping of Transmembrane Helices of Integral Membrane Proteins: Aids to Structure Determination of Integral Membrane Proteins. Internet J. Chem. 2003, 6 (accessed April 29, 2019).
Zotero creates:
Zloh, M.; Esposito, D.; Gibbons, W. A. Helical Net Plots and Lipid Favourable Surface Mapping of Transmembrane Helices of Integral Membrane Proteins: Aids to Structure Determination of Integral Membrane Proteins. Internet J Chem 2003, 6.
The ACS style currently only does URLs and accessed dates for webpages -- we should probably expand that, yes.