title: [Geographic and social factors that affect the age of puberty].
mesh_terms: D003604:Czechoslovakia; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005191:Family Characteristics; D005843:Geography; D008572:Menarche; D008598:Menstruation; D011153:Population; D012098:Reproduction; D012111:Residence Characteristics
keywords: Czechoslovakia; Developed Countries; Eastern Europe; Europe; Family And Household; Geographic Factors; Menarche; Menstruation; Population; Reproduction; Residence Characteristics; Spatial Distribution
vernacular_title: Quelques facteurs geographiques et sociaux ayant une influence sur l'age de la puberte.