"β₂-Agonists and physical performance: a systematic review and meta-analysis of randomized controlled trials". Sports Medicine. 41 (1): 39-57. January 2011. doi:10.2165/11537540-000000000-00000. PMID21142283.KB1 bakım: göster-yazarlar (link)
"β₂-Agonists and physical performance: a systematic review and meta-analysis of randomized controlled trials". Sports Medicine. 41 (1): 39-57. January 2011. doi:10.2165/11537540-000000000-00000. PMID21142283.KB1 bakım: göster-yazarlar (link)
noahcompendium.co.uk
"Presentation". www.noahcompendium.co.uk (İngilizce). 2 Şubat 2020 tarihinde kaynağından arşivlendi. Erişim tarihi: 24 Ocak 2020.