( January 19, 2016, 2:53 PM EST) -- ST. LOUIS — Without expert testimony, a plaintiff cannot raise a genuine issue of material fact concerning actual exposure to mold and whether exposure to mold caused his alleged ailments, a Missouri federal judge ruled Jan. 14, granting summary judgment to the manufacturers and designers of a bed (Ralph Simon v. Select Comfort Retail Corp., et al., No. 14-1136, E.D. Mo.; 2016 U.S. Dist. LEXIS 4475)....