The Motley Fool·Mar 7·Reuben Gregg BrewerEli Lilly's GLP-1 Dominance Masks Valuation Risks for Long-Term InvestorsEli Lilly's GLP-1 success masks valuation risks; P/E of 44 leaves little room for competitive pressure and patent cliff execution. PFELLYNVOGLP-1 drugsgeneric competition