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Human Reproduction, Vol. 17, No. 7, 1925-1926, July 2002
© 2002 European Society of Human Reproduction and Embryology

TwoDay Algorithm in predicting fertile time

David B. Dunson2,3 and Bernardo Colombo3

2 Biostatistics Branch, MD A3-03, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA 3 Department of Statistics, University of Padua, Padua, Italy

The first 10% of the full text of this article appears below.


   Introduction
 
Dear Sir,

There are a number of factors that could have led to the higher estimated first-year pregnancy rate for the TwoDay Algorithm compared with the Billings Ovulation Method (BOM).

Focusing firstly on the possibilities raised by Dr. Mikolajczyk, these are: (i) days of abstinence: the TwoDay algorithm requires abstinence . . . [Full Text of this Article]


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