Jat, K. R.; Khairwa, A. (April 2013). "Levalbuterol versus albuterol for acute asthma: a systematic review and meta-analysis". Pulmonary Pharmacology & Therapeutics. 26 (2): 239–248. doi:10.1016/j.pupt.2012.11.003. PMID23207739.
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pubmed.ncbi.nlm.nih.gov
Jat, K. R.; Khairwa, A. (April 2013). "Levalbuterol versus albuterol for acute asthma: a systematic review and meta-analysis". Pulmonary Pharmacology & Therapeutics. 26 (2): 239–248. doi:10.1016/j.pupt.2012.11.003. PMID23207739.