PT - JOURNAL ARTICLE AU - Barnes, PJ TI - Muscarinic receptor subtypes in airways AID - 10.1183/09031936.93.06030328 DP - 1993 Mar 01 TA - European Respiratory Journal PG - 328--331 VI - 6 IP - 3 4099 - http://erj.ersjournals.com/content/6/3/328.short 4100 - http://erj.ersjournals.com/content/6/3/328.full SO - Eur Respir J1993 Mar 01; 6