 
			 
			MCQOPTIONS
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				| 1. | The technique(s), used for the assay of heat-labile enterotoxin produced by Escherichia coli, is/are | 
| A. | Steroid production in Yl mouse adrenal cell culture | 
| B. | Morphological changes in Chinese hamster ovary | 
| C. | Enzyme-linked immunosorbent assay | 
| D. | All of these | 
| Answer» E. | |