[1] CUNY MT SINAI SCH MED, DEPT NEUROL, NEW YORK, NY 10029 USA
[2] CUNY MT SINAI SCH MED, DEPT PHYSIOL & BIOPHYS, NEW YORK, NY 10029 USA
[3] CUNY MT SINAI SCH MED, DEPT PHARMACOL, NEW YORK, NY 10029 USA
[4] UNIV CAPE TOWN, SCH MED, MRC, REGULATORY PEPTIDES UNIT, ZA-7925 CAPE TOWN, SOUTH AFRICA
[5] UNIV CAPE TOWN, SCH MED, DEPT CHEM PATHOL, ZA-7925 CAPE TOWN, SOUTH AFRICA
[6] UNIV CAPE TOWN, SCH MED, DEPT MED, ZA-7925 CAPE TOWN, SOUTH AFRICA