Browsing by Author "Organización Mundial de la Salud"

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    • Menstrual blood loss with use of a vaginal ring releasing 20 μg levonorgestrel per day 
      Organización Mundial de la Salud; Task, Force on Long Acting Systemic Agents for Fertility Regulation; Special, Programme of Research, Development and Research; ; Ji, Gao; Andrade, A. T.L.; Souza, J. P.; Pizarro-Orchard, E.; Romero Osses, Carmen (1993)
      Menstrual blood loss (MBL), haemoglobin and serum ferritin levels were studied in a total of 127 women from three developing country centres, using a vaginal ring releasing 20 μg levonorgestrel/day. The objective was to ...