Mason, Ros <br/><br/>
Oestrogen levels could be affected.  [electronic resource] 

 -  Nursing standard (Royal College of Nursing (Great Britain) : 1987)  Nov 1995 
 - 42 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2047-9018 
<br/><br/><label>Standard No.: </label>10.7748/ns.10.9.42.s43  doi