The activity of three different small-intestinal B-galactosidases in adults with and without lactase deficiency / 
by Nilo-Georg Asp [and others]. 
 - Lund, Sweden :  University Hospital,  [1971] 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biochemical genetics.<br/>Enzymes.<br/>Genetic regulation.