title: Introduction to the special issue honoring Professor David R. Bickers.
authors.forename: Nihal
authors.initials: N
authors.lastname: Ahmad
authors.forename: Mohammad
authors.initials: M
authors.lastname: Athar
mesh_terms: D049673:History, 20th Century; D049674:History, 21st Century; D018462:Photobiology / Q000266:history*; D014481:United States