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Summary
DescriptionIndia Male to Female Sex Ratio 1941 1951 1961 1981 1991 2001 2011.png
English: The chart shows male to female sex ratio for India based on its Census data, along with historical timeline of technology for fetal sex determination ultrasonography.
2. Sex ratio for 2011 is from Final Population Totals, "Sex Composition of the Population", Census of India 2011 (Publisher: Office of Registrar General and Census Commissioner of India, Ministry of Home Affairs, Government of India). Web version: http://censusindia.gov.in/2011census/censusinfodashboard/
3. Historical timeline for ultrasonography in prenatal, obstetrics and gynecology is from: (a) Joseph Woo, A short History of the development of Ultrasound in Obstetrics and Gynecology; (b) "Looking at the Unborn: Historical Aspects of Obstetric Ultrasound" - Witness seminar transcript. Wellcome Witness to Twentieth Centurty Medicine. E M Tansey, D A Christie (editors), January 2000; (c) Roger Freeman et al. (2012), Fetal Heart Rate Monitoring, 4th Edition, ISBN978-1451116632, Chapter 1, pages 2-4.
Français : Le graphique montre ratio homme de sexe féminin pour l'Inde sur la base de ses données de recensement, ainsi que la chronologie historique de la technologie pour la détermination du sexe du fœtus échographie.
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