title: [Optimum timing of procreation and natural or controlled fertility].
mesh_terms: D000367:Age Factors; D001519:Behavior; D001695:Biology; D001722:Birth Order; D001724:Birth Weight; D001835:Body Weight; D003710:Demography; D005191:Family Characteristics; D005195:Family Relations; D009035:Mothers; D010290:Parents; D010551:Personality; D010553:Personality Development; D010827:Physiology; D011153:Population; D011154:Population Characteristics
keywords: Age Factors; Behavior; Biology; Birth Order; Birth Weight; Body Weight; Demographic Factors; Family And Household; Family Characteristics; Family Relationships; Mothers; Parents; Personality; Personality Development; Physiology; Population; Population Characteristics
vernacular_title: Optymalny rytm rozrodu a plodnosc naturalna i regulowana.