Lantheus Sees Q2 Sales $93M-$97M vs $93.25M Estimate, Adj. EPS $0.03-$0.06 vs $0.04 Est.; Narrows FY21 Sales Guidance From $385M-$400M To $390M-$400M vs $390.6M Est., Raises Adj. EPS Guidance From $0.34-$0.39 To $0.36-$0.41 vs $0.37 Est.