[1] Glycyrrhizin And Long-Term Histopathologic Changes In A Murine Model Of Asthma
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3957157/
[2] A Study Of Licorice Root - University of Rochester Medical Center
https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=19&contentid=Licorice
[3] Medicinal Properties And Uses Of Tulsi
http://srimca.edu.in/SRIJAN/SrijanDec2013/Health/Holybasil(Tulsi).html
[4] Antioxidant Activity Of The Ancient Herb, Holy Basil
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4766851/
[5] Echinacea—A Source of Potent Antivirals For Respiratory Virus Infections
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4058675/
[6] Echinacea: A Miracle Herb?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1193558/
[7] Efficacy And Tolerability Of A Fluid Extract Combination Of Thyme Herb And Ivy Leaves And Matched Placebo In Adults Suffering From Acute Bronchitis With Productive Cough. A Prospective, Double-Blind, Placebo-Controlled Clinical Trial
https://pubmed.ncbi.nlm.nih.gov/17063641/
[8] Effect Of Propolis On Moderate Persistent Asthma
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7885004/
[9] Astragalus Extract Attenuates Allergic Airway Inflammation And Inhibits Nuclear Factor
https://pubmed.ncbi.nlm.nih.gov/23267235/
[10] Oral Astragalus For Preventing Frequent Episodes Of Acute Respiratory Tract Infection In Children
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6463872/
[11] Acute Bronchitis
https://www.ncbi.nlm.nih.gov/books/NBK448067/
[12] Lung Damage From Recent Pandemic
https://www.hopkinsmedicine.org/health/conditions-and-diseases/coro...