Family relationships (1) Children (1) Surveys (1) Memetics (1) Contagion (Social psychology) (1) Time (1) Sexual intercourse (1) Mothers (1) Men (1) Livonians (1) Life (1) Interpersonal relations (1) Guards troops (1) Gender (Musical instrument) (1) Creation (1) Cohort analysis (1) Cognition (1) Back (1) Plenas (1) Women (1) Attitudes (1) Influence (1) Relations with women (1) Marriage (1) Family (1) Encuestas (1) Madres (1) Creación (1) Tiempo (1) Relaciones sexuales (1)