# Most-cited Medicine papers of 2020, with free PDFs

The 25 most-cited Medicine research papers published in 2020, ranked by citations in OpenAlex, with their original abstracts and free PDFs where available.

1. [Clinical Characteristics of Coronavirus Disease 2019 in China](https://nerdi.pages.dev/paper/W3008827533) · 30,440 citations
2. [A Novel Coronavirus from Patients with Pneumonia in China, 2019](https://nerdi.pages.dev/paper/W3001897055) · 28,458 citations
3. [A pneumonia outbreak associated with a new coronavirus of probable bat origin](https://nerdi.pages.dev/paper/W3004280078) · 22,131 citations · Free PDF
4. [Cancer statistics, 2020](https://nerdi.pages.dev/paper/W2999417355) · 20,487 citations
5. [Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China](https://nerdi.pages.dev/paper/W3005079553) · 20,250 citations
6. [Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine](https://nerdi.pages.dev/paper/W3111255098) · 14,665 citations
7. [A new coronavirus associated with human respiratory disease in China](https://nerdi.pages.dev/paper/W3003217347) · 11,793 citations · Free PDF
8. [Dexamethasone in Hospitalized Patients with Covid-19](https://nerdi.pages.dev/paper/W3042270788) · 11,540 citations
9. [World Health Organization 2020 guidelines on physical activity and sedentary behaviour](https://nerdi.pages.dev/paper/W3108106255) · 11,506 citations · Free PDF
10. [Global Burden of Cardiovascular Diseases and Risk Factors, 1990–2019](https://nerdi.pages.dev/paper/W3113178943) · 11,346 citations · Free PDF
11. [Efficacy and Safety of the mRNA-1273 SARS-CoV-2 Vaccine](https://nerdi.pages.dev/paper/W3113734454) · 10,170 citations
12. [Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1](https://nerdi.pages.dev/paper/W3012099172) · 10,029 citations
13. [Global burden of 87 risk factors in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019](https://nerdi.pages.dev/paper/W3092861045) · 9,653 citations · Free PDF
14. [Presenting Characteristics, Comorbidities, and Outcomes Among 5700 Patients Hospitalized With COVID-19 in the New York City Area](https://nerdi.pages.dev/paper/W3016535995) · 9,301 citations
15. [Heart Disease and Stroke Statistics—2020 Update: A Report From the American Heart Association](https://nerdi.pages.dev/paper/W3003299879) · 9,203 citations
16. [Cryo-EM structure of the 2019-nCoV spike in the prefusion conformation](https://nerdi.pages.dev/paper/W3007643904) · 8,987 citations · Free PDF
17. [The species Severe acute respiratory syndrome-related coronavirus: classifying 2019-nCoV and naming it SARS-CoV-2](https://nerdi.pages.dev/paper/W3009906937) · 8,474 citations · Free PDF
18. [Risk Factors Associated With Acute Respiratory Distress Syndrome and Death in Patients With Coronavirus Disease 2019 Pneumonia in Wuhan, China](https://nerdi.pages.dev/paper/W3011610993) · 8,311 citations
19. [Re-epithelialization and immune cell behaviour in an ex vivo human skin model](https://nerdi.pages.dev/paper/W3004227146) · 8,232 citations · Free PDF
20. [Global, regional, and national sepsis incidence and mortality, 1990–2017: analysis for the Global Burden of Disease Study](https://nerdi.pages.dev/paper/W2998853022) · 7,899 citations
21. [WHO Declares COVID-19 a Pandemic.](https://nerdi.pages.dev/paper/W3012320055) · 7,519 citations
22. [Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR](https://nerdi.pages.dev/paper/W3001195213) · 7,418 citations · Free PDF
23. [Atezolizumab plus Bevacizumab in Unresectable Hepatocellular Carcinoma](https://nerdi.pages.dev/paper/W3025022288) · 7,409 citations
24. [Remdesivir for the Treatment of Covid-19 — Final Report](https://nerdi.pages.dev/paper/W3027630905) · 7,294 citations
25. [Neurologic Manifestations of Hospitalized Patients With Coronavirus Disease 2019 in Wuhan, China](https://nerdi.pages.dev/paper/W3016127017) · 7,197 citations

Canonical page: https://nerdi.pages.dev/papers/medicine/most-cited-2020