Secular Variation in Coimbra (Portugal) since 1866.
نویسندگان
چکیده
منابع مشابه
Age at menarche in Coimbra (Portugal) school girls: a note on the secular changes.
The age at menarche and several menstrual symptoms were reported by 516 Portuguese school girls who took part in a cross-sectional anthropometric study in Coimbra, Portugal. The mean ages of menarche calculated using the recall method and also using probit analysis were 12.53 +/-1.27 and 12.03 +/- 1.26 years, respectively. Parents'educational level, place of residence and size of the family did...
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ژورنال
عنوان ژورنال: Journal of geomagnetism and geoelectricity
سال: 1995
ISSN: 0022-1392
DOI: 10.5636/jgg.47.267