Study 1 Echinacea against coronavirus — ResearchSquare
Study 2 Echinacea Against Cold — published in The Cochrane Library – 2014
Study 1 Propolis against Sars-Cov-2 infection — Biomedicine & Pharmacotherapy – 2020
Study 2 Propolis and the immunomodulatory effect — Medical Community Journal – 2019
Study 3 Propolis – is propolis safe — article – September 2021
Study 4 Resveratrol and MERS-Cov infection — BMC Infectious Diseases – 2017
Study 1 Zinc, Magnesium, Selenium vs. Sars-Cov-2 — CHAO – July 2021
Study 2 Zinc and respiratory infections Covid-19 — Journal of Molecular Medicine – April 2020
Study 3 Zinc deficiency and Covid-19 — Journal of Infectious Diseases – July 2020
Study 4 Zinc and the causes of Covid-19 — Journal of Immunology – July 2020
Study 5 Zinc inhibits coronavirus — PLOS Pathogenesis Journal – November 2010
Study 6 Zinc and Profiling and Treatment in Covid-19 Disease — Journal of Medical Hypotheses – 2020
Study 1 Vitamin D meta-analysis — April 2021
Study 2 Vitamins A, D, E, K evident in Covid-19 — Journal of Inflammation Research – May 2021
Study 3 Magnesium in the Covid pandemic-19-perspectives — Magnesium Research Journal – August 2020
Study 4 Vitamin A, B, C, D, E and coronavirus — research – 2020
Study 5 Vitamin B and Covid-19 — Journal of Maturitas, doi.org – 2021
Study 6 Vitamin D, C, E, Zinc, Selenium, Omega3 and Covid-19 — Journal Maturitas 143 – 2021
Study 7 Vitamin D and Covid-19 in the Elderly population — MDPI Nutrient Journal – April 2021
Study 8 Vitamin D-deficiency and Covid-19 — MedRxiv – May 2021
Study 9 Vitamin D-deficiency and Covid-19 — Journal of Health Security – 2021
Study 10 Vitamin D and Covid-19 survivors — Journal of Molecular Biology – 2020
Study 11 Vitamin D and Covid-19 — JAMA network – September 2020
Study 12 Vitamin D, B12, Magnesium and Covid-19-in the elderly — MedRxiv – June 2020
Study 13 Vitamin D in Influenza and Covid-19 — MDPI Nutrients – April 2020
Study 14 Vitamin D and Covid-19 — MDPI Nutrienti – September 2020
Study 15 Vitamin D and severe Covid-19 — MedRxiv – May 2021
Study 16 Vitamin D and Covid-19 Prevention — Journal of Infectious Diseases – June 2020
Study 17 Vitamin C and ARDS — Journal of Pharmacy Nutrition – 2020
Study 18 Vitamin A and Covid-19 Treatment — AGING – 2020 Research
Study 1 Melatonin in the treatment of Covid-19 — MDPI Diseases – November 2020
Study 2 Melatonin as an aid in the treatment of Covid-19 — Journal of Scientific Life 250 – 2020
Study 3 Melatonin and Covid-19 Therapeutic Algorithm — Frontier Journal of Medicine – 2020
Study 4 Melatonin and Viral Infections Including Covid-19 — Virus Research 287 – 2020
Study 1 Anticoagulant-treatment and Covid-19 — JTH – 2020 Magazine
Study 2 Anticoagulant-treatment of Covid-19 — MMR Military Medical Research – 2020
Study 3 Aspirin used in Covid-19 — Journal of General Medicine – 2020
Study 4 Aspirin for Covid-19 — Journal of Medicine – June 2020
Study 5 Low-dose aspirin in Covid-19 — Editorial T/F Expert Opinion – June 2021
Study 1 Famotidine and Covid-19 — Journal of Gastroenterology – 2020
Study 2 Famotidine and Covid-19 — Journal of Frontiers in Pharmacology – March 2021
Study 3 Famotidine and Covid-19 — Open Access Magazine – May 2020
Study 1 Cortisone therapy and Covid-19 — Journal of Intensive Care Therapy – 2020
Study 2 Cortisone and Covid-19 – which is better — BMC Infectious Diseases – 2021
Study 3 Cortisone and severe forms of Covid-19 — MedRxiv – June 2020
Study 1 Bromhexine and Covid-19 — ResearchGate Research Journal – July 2020
Study 2 Bromhexine and Covid-19 — Journal of Medical Investigations – February 2021
Study 3 Bromhexine and coronavirus — Journal of Infectious Diseases – 2020