{HEAD ~ Materials} and methods related to sodium/potassium adenosine triphosphase and {TAIL ~ cholesterol} 
related to
{ HEAD ~ Materials } and methods related to sodium / potassium adenosine triphosphase and { TAIL ~ cholesterol }
HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL