Jayasekara, R.2012-01-102012-01-101994The Ceylon Journal of Medical Science37(1)pp.23-27https://dl.nsf.gov.lk/handle/1/7145Health ScienceMenstruationSocioeconomic statusHealth statisticsBiological rhythmsGynaecologyFactors influencing the age at natural menopause in Sinhalese womenArticle