Leaf, A <br/><br/>
Getting old.  [electronic resource] 

 -  Scientific American  Sep 1973 
 - 44-52 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8733 
<br/><br/><label>Standard No.: </label>10.1038/scientificamerican0973-44  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Aging<br/>Diet<br/>Environment<br/>Female<br/>Genetics, Medical<br/>Humans<br/>Longevity<br/>Male<br/>Medicine in the Arts<br/>Sex Factors