TY - GEN AU - Devereux,R B TI - Pharmacologic stress echocardiography SN - 0003-4819 PY - 1992///0714 KW - Chi-Square Distribution KW - Echocardiography KW - methods KW - Humans N1 - Publication Type: Comment; Letter UR - https://doi.org/10.7326/0003-4819-117-2-168 ER -