Kovacs, L <br/><br/>
[The expediency of using natural oestrogens in combined oral contraceptive tablets].  [electronic resource] 

 -  Orvoskepzes  Mar 1983 
 - 99-103 p.  digital 
<br/><br/> Publication Type: English Abstract; Journal Article 
<br/><br/><label>ISSN: </label>0030-6037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amenorrhea<br/>Contraception<br/>Contraceptive Agents<br/>Contraceptive Agents, Female<br/>Contraceptives, Oral<br/>Contraceptives, Oral, Combined<br/>Estradiol<br/>Estriol<br/>Ethinyl Estradiol<br/>Evaluation Studies as Topic<br/>Family Planning Services<br/>Menstrual Cycle<br/>Reproductive Control Agents