Muscle Mass as a Causal Factor in MASLD: Insights from a Genome-Wide Association Study and Bidirectional Mendelian Randomization Using Data from the Korean Genome and Epidemiology Study. - Baek, Kiook; Park, Jung Gil; Lee, Yu Rim; Park, Soo Young; Kweon, Young Oh; Tak, Won Young (Gut & Liver, 2026)