TY - GEN AU - Cockcroft,D W TI - Beta-agonists and bronchial asthma SN - 0012-3692 PY - 1994///0802 KW - Adrenergic beta-Agonists KW - therapeutic use KW - Asthma KW - drug therapy KW - Humans N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1378/chest.106.1.323a ER -