Asp, Nils-Georg. <br/><br/>
Small-intestinal B-Galactosidases :  characterization of different enzymes and application to human lactase deficiency. 

 - Lund, Sweden :  University Hospital, Dept. of Clinical Chemistry,  1971. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biochemical genetics.<br/>Enzymes.<br/>Genetic regulation.