Obstetrics in the 1990s :  current controversies / 
edited by T. Chard and M. P. M. Richards 
 - London :  Mac Keith Press,  1992. 
 - 249 pges :   illustrations ;   24 cm. 
 - Clinics in developmental medicine  Nos. 123/124 .
<br/><br/><label>ISBN: </label>0521432308