Complex sentence: With the emergence of the lipid raft hypothesis, the role of cholesterol Simons K, Ikonen E. "Functional rafts in cell membranes" "Nature" 1997; 387: 569-72 in membrane function became a focus of new research into exocytosis and endocytosis.
Split into simpler sentences: With the emergence of the lipid raft hypothesis, the role of cholesterol Simons K, Ikonen E. Functional rafts in cell membranes. Nature 1997; 387: 569-72 in membrane function became a focus of new research into exocytosis and endocytosis.