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pro vyhledávání: '"Yonia Burrows"'
Autor:
Cary Evelyn, John Dillett, Tanya Bethel, A. Odekunle, Yonia Burrows, Kirk Christie, Johann Gray, Jennifer Carter, Edward O. Uche-Nwachi, Lloyd Stubbs, Tara Workman, Ingrid Osolo
Publikováno v:
OnLine Journal of Biological Sciences. 7:66-71
Menarche is the first menstrual period. It is the final event in the physical manifestation of gonadal development. A study in Europe found that the median age of menarche was 12 years and 11 months and that by the tenth year, 0.8% of the girls had t