[Recommendations of the 4th Work Meeting of the Discussion Group of Zürich].  [electronic resource] 

 -  Zentralblatt fur Gynakologie  1990 
 - 517-9 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0044-4197 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraceptives, Oral--administration & dosage<br/>Contraceptives, Oral, Combined--administration & dosage<br/>Contraceptives, Oral, Sequential--administration & dosage<br/>Female<br/>Humans<br/>Lipids--blood