AU - GENGO FM TI - ß-blockade and mental performance-reply PT - JOUR DP - 1989 TA - Archives of Internal Medicine pages = {473-475}, VI - 149 IP - 2 AID - 10.1001/archinte.1989.00390020156047 [doi] 4100 - http://dx.doi.org/10.1001/archinte.1989.00390020156047 SO - Archives of Internal Medicine February 1, 1989 149(2):473