title: Uncertainties in Big Data When Using Internet Surveillance Tools and Social Media for Determining Patterns in Disease Incidence-Reply.
authors.affiliation: Francis I. Proctor Foundation, Department of Ophthalmology, University of California, San Francisco, San Francisco.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Deiner
authors.affiliation: Francis I. Proctor Foundation, Department of Ophthalmology, University of California, San Francisco, San Francisco2Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco.
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Lietman
authors.affiliation: Francis I. Proctor Foundation, Department of Ophthalmology, University of California, San Francisco, San Francisco2Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco.
authors.forename: Travis C
authors.initials: TC
authors.lastname: Porco
mesh_terms: D015994:Incidence; D020407:Internet; D009017:Morbidity; D061108:Social Media; D035501:Uncertainty