Core-excited microsecond isomer in Pb207RemoveS. K. Tandel, S. G. Wahid, N. Krishnadev, M. Hemalatha, Subhrajit Sahoo, P. C. Srivastava, P. Chowdhury, R. V. F. Janssens, F. G. Kondev, M. P. Carpenter, T. Lauritsen, and D. SeweryniakPhys. Rev. C 112, 024302 (2025)