TY - BOOK AU - SAPOLSKY, ROBERT M TI - WHY ZEBRAS DON'T GET ULCERS: THE ACCLAIMED GUIDE TO STRESS, STRESS-RELATED DISEASES, AND COPING SN - 0-8050-7369-8 PY - 2004/// CY - NEW YORK PB - HENRY HOLT AND COMPANY KW - PSYCHOLOGY ER -