File photo: Stan Lee gestures as he poses at the premiere of "Iron Man 3" at El Capitan theatre in Hollywood, California, U.S., April 24, 2013. (Photo/Agencies)
File photo: Marvel Comics co-creator Stan Lee shows his hands after placing them in cement during a ceremony in the forecourt of the TCL Chinese theatre in Los Angeles, California, U.S., July 18, 2017. (Photo/Agencies)
File photo: Stan Lee, 92-year-old comic book legend, poses during premiere of Marvel's "Ant-Man" in Hollywood, California June 29, 2015. (Photo/Agencies)
File photo: Comic book creator and executive producer Stan Lee poses on a motorcycle at the world premiere of the film "Marvel's The Avengers" in Hollywood, California, April 11, 2012.(Photo/Agencies)
File photo: Marvel Comic Books founder Stan Lee (C) poses with one of his characters "Spider-Man" (L) and actor Lou Ferrigno who portrayed "The Incredible Hulk" on television, during the grand opening of the Marvel Mania restaurant at Universal CityWalk in Los Angeles February 18, 1998.(Photo/Agencies)
File photo: Stan Lee (L), credited with creating the Marvel Comics characters in the 1960s, and hosts Carmen Electra (C) and Dave Navarro, introduce Hideo Kojima to present the Jeep Legend Award during "G-Phoria - The Award Show 4 Gamers" at the Shrine Auditoreum in Los Angeles, California July 31, 2004.(Photo/Agencies)
File photo: Stan Lee (R) creator of comic book character "The Hulk" and actor Lou Ferrigno, who portrayed "The Hulk" on television, give their best "Hulk" pose for photographers at the premiere of the new action film "The Hulk" in Los Angeles June 17, 2003. (Photo/Agencies)
File photo: Executive producer Stan Lee attends the premiere of "Captain America: Civil War" in Los Angeles April 12, 2016. (Photo/Agencies)
File photo: Marvel Comics co-creator Stan Lee places his handprints in cement during a ceremony in the forecourt of the TCL Chinese theatre in Los Angeles, California, U.S., July 18, 2017. (Photo/Agencies)
File photo: Marvel Comics co-creator Stan Lee poses at a tribute event "Extraordinary: Stan Lee" at the Saban Theatre in Beverly Hills, California, U.S., August 22, 2017. (Photo/Agencies)
