Hepler, Opal Elsie,  1899-. <br/><br/>
Manual of clinical laboratory methods / 
Opal Elsie Hepler ; With a foreword by James P. Simonds. 
 - 4th. ed. 
 - Springfield, Ill. :  C. C. Thomas,  1949. 
 - 387 p. :  ill. (part col.) ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diagnosis, Laboratory.