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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1991 1
1995 1
1996 1
1997 1
1998 1
1999 2
2000 1
2002 2
2003 3
2004 2
2005 2
2007 1
2008 1
2010 1
2011 3
2012 1
2013 2
2014 4
2015 6
2016 1
2017 3
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2020 1
2025 0

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Page 1
Approaches to natural family planning.
Gnoth C. Gnoth C. Fertil Steril. 2000 Dec;74(6):1262-3. doi: 10.1016/s0015-0282(00)01652-6. Fertil Steril. 2000. PMID: 11188022 Free article. No abstract available.
The impact of disturbances in natural conception cycles.
Gnoth C, Keil AK, Schiffner J, Heil S, Mallmann P, Freundl G, Strowitzki T. Gnoth C, et al. Arch Gynecol Obstet. 2020 Apr;301(4):1069-1080. doi: 10.1007/s00404-020-05464-y. Epub 2020 Mar 5. Arch Gynecol Obstet. 2020. PMID: 32140804
Final ART success rates: a 10 years survey.
Gnoth C, Maxrath B, Skonieczny T, Friol K, Godehardt E, Tigges J. Gnoth C, et al. Hum Reprod. 2011 Aug;26(8):2239-46. doi: 10.1093/humrep/der178. Epub 2011 Jun 9. Hum Reprod. 2011. PMID: 21659314
40 results