France (1) Differentials (1) Assaying (1) Communication (1) Observations (1) Specimens (1) Observations (1) Spleen (1) Primitive societies (1) Samples (Commerce) (1) Progress (1) Mothers--Mortality (1) Etiquette (1) Cognition (1) Chronology, Historical (1) Childbirth (1) Causation (1) Analysis (1) Influence (1) Social life and customs (1) Infections (1) Mortalidad maternal (1) Cronología histórica (1) Bazo (1) Sociedad primitiva (1) Etiqueta (1) Infecciones (1) Progreso (1) Causalidad (1) Étude comparative (1)