James, W H <br/><br/>
A further test of the fetus-fetus interaction hypothesis.  [electronic resource] 

 -  American journal of medical genetics  Apr 1988 
 - 953-4 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0148-7299 
<br/><br/><label>Standard No.: </label>10.1002/ajmg.1320290432  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birth Intervals<br/>Embryonic and Fetal Development<br/>Humans<br/>Neural Tube Defects--embryology