1. 
   Billings method
   (bil´ingz) cervical mucus method.
   Found op http://www.encyclo.co.uk/local/21001
   
   
2. 
   Billings Method
   A contraceptive method of periodic abstinence in which the time of ovulation is determined by observing changes in the amount, consistency, and elasticity of cervical mucus secretions during the intervals between two menstrual periods. Synonym(s): Cervical Mucus Rhythm Method
   Found op http://www.pregnology.com/AZ/B/2
   
   
3. 
   Billings method
   Type: Term Pronunciation: bil′ingz Definitions: 1. a contraceptive method that involves periods of abstinence determined by changes in cervical mucus.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=54770
   
   
4. 
   Billings Ovulation Method
   Although used occasionally in later experimental devices, this nuclear weapon design was used only once as a weapon, in Little Boy, because of the extreme danger of a misfire. A simple crash could drive the "bullet" into the "target" and release lethal radiation doses or even a full nuclear detonat...
   Found op http://en.wikipedia.org/wiki/Billings_Ovulation_Method
   
   
5. 
   Billings ovulation method
   The Billings Ovulation Method (BOM) is a method which women use to monitor their fertility, by identifying when they are fertile and when they are infertile during each menstrual cycle. Users pay attention to the sensation at their vulva, and the appearance of any vaginal discharge. This informatio...
   Found op http://en.wikipedia.org/wiki/Billings_ovulation_method
   
   

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