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Add 11 books for verifiability (20210203)) #IABot (v2.0.8) (GreenC bot
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سطر 429:
* 1908–1911: Creation of dihydrocodeine<ref>{{حوالہ ویب|url=https://www.drugbank.ca/drugs/DB01551|title=Dihydrocodeine|last=|first=|date=|website=www.drugbank.ca|accessdate=8 November 2019}}</ref>
* 1909, 1929: First intrauterine device (IUD) by Richard Richter (of Waldenburg, then part of Germany; in 1909), and the first ring (''Gräfenberg's ring'', 1929) used by a significant number of women by Ernst Gräfenberg.<ref>{{حوالہ رسالہ|title=Pioneers of the intrauterine device|last=Thiery|first=M.|pages=15–23}}</ref>
* 1909: Labello by Dr. Oscar Troplowitz<ref>{{حوالہ ویب|url=https://int.labello.com/about-labello/history|title=History - More Than 100 Years of Lip Care|last=|first=|date=|website=Labello|accessdate=18 December 2019|archive-date=2019-08-23|archive-url=https://web.archive.org/web/20190823185920/https://int.labello.com/about-labello/history|url-status=dead}}</ref>
* 1912–1916: Modern [[کنڈوم|condom]] by Julius Fromm in Berlin<ref>{{حوالہ کتاب|title=The Humble Little Condom: A History|last=Collier|first=Aine|publisher=Prometheus Books|year=2007|isbn=978-1-59102-556-6|location=Amherst, NY}}</ref>
* 1912: MDMA by Merck chemist Anton Köllisch<ref>{{حوالہ ویب|url=https://www.thoughtco.com/invention-of-mdma-ecstasy-4079861|title=The History, Patent, and Uses of MDMA|website=ThoughtCo|accessdate=10 February 2019}}</ref>