République tchèque (2) Mortality (2) Diagnosis (2) Composition (2) Securities industry (2) Water waves (2) Values (2) Stress (Physiology) (2) State, The (2) Securities (2) Plague (2) Ocean waves (2) Necessity (Philosophy) (2) Prehistoric peoples--Population (2) Informers (2) Hypothesis (2) Famines (2) Epidemics (2) Demographic archaeology (2) Day (2) Czechs (2) Creation (2) Certainty (2) Cemeteries (2) Age (2) Structure (2) Tombs (2) Necesidad (Filosofía) (2) Estrés (Fisiología) (2) Peste (2)