Terms and phrases (1) Terms and phrases (1) Nineteen nineties (1) Price-earnings ratio (1) Worms (1) Spleen (1) Poor (1) Physicians (1) Perspective (1) Pension trusts (1) Migrant labor (1) Working class (1) Impact (1) Immigrants (1) Equilibrium (1) Africans (1) Classification (1) Classification (1) Evolution (1) Rates (1) Names (1) Migration (1) Emigration and immigration (1) Medical personnel (1) Experiments (1) Africanos (1) Bazo (1) Terminología (1) Emigración e inmigración (1) Perspectiva (1)