Epi info, version 5.01 
program design by Andrew G. Dean ... [et al.]. 
 - Rev. December 1990. 
 - Atlanta, Ga.  Centers for Disease Control  1990. 
 - 384 p.  25 cm.  4 computer disks (5 1/4 in. 
<br/><br/><label>LCCN: </label>doc92000582  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiological research--Software.--United States