tors. G. D. & Nussenzweig, M. C Germinal centers. Anna. Rev. Iminunot 30. 429-457 (2012). 47. Pavlogiannis. A.. Tkadlec, L. Chatterjee. K. & Nowak. M. A. Strong amplifiers of natural selection: proofs. Preprint at httpdfarXiv:1802.02509 (2018). 48. Tkadlec. L. Data for Fig. 3 in Construction of arbitrarily