Mealey's (July 2, 2018, 2:13 PM EDT) -- ROCK HILL, S.C. — A medical expert’s opinion that the amputation of three of a woman’s limbs due to complications from Crohn’s disease could have been prevented had a doctor provided proper treatment when he first saw her in the emergency room fails because it is speculative, but the expert can opine that the doctor’s negligence during a later emergency room visit caused the woman’s amputations, a South Carolina federal judge held June 29 (Zekiya Knox v. United States, et al., No. 0:17-cv-36, D. S.C., 2018 U.S. Dist. LEXIS 109113)....