Warning: mysqli_close() expects exactly 1 parameter, 0 given in /usr/local/www/apache24/l.academicdirect/Medicine/Informatics/MESH/browse/desc/index.php on line 75 D21Anti-Allergic and Respiratory System AgentsD018944 + D21.760Respiratory System AgentsD019141 + D21.760.050Anti-Asthmatic AgentsD018927 + D21.760.050.100Bronchodilator AgentsD001993 D27Chemical Actions and UsesD020164 + D27.505Pharmacologic ActionsD020228 + D27.505.954Therapeutic UsesD045506 + D27.505.954.033Anti-Allergic and Respiratory System AgentsD018944 + D27.505.954.033.760Respiratory System AgentsD019141 + D27.505.954.033.760.050Anti-Asthmatic AgentsD018927 + D27.505.954.033.760.050.100Bronchodilator AgentsD001993