[1] SIR MORTIMER B DAVIS JEWISH GEN HOSP, LADY DAVIS INST MED RES, CELL GENET LAB, MONTREAL H3T 1E2, QUEBEC, CANADA
[2] MONTREAL GEN HOSP, DIV ENDOCRINOL & METAB, MONTREAL H3G 1A4, QUEBEC, CANADA
[3] MCGILL UNIV, CTR HUMAN GENET, MONTREAL H3A 2T5, QUEBEC, CANADA
[4] CORNELL UNIV, MED CTR, COLL MED, DEPT MED, DIV ENDOCRINOL, NEW YORK, NY 10021 USA