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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1929 1
1932 1
1933 1
1934 1
1939 1
1940 2
1943 1
1944 1
1946 2
1947 1
1948 5
1949 1
1950 1
1951 1
1952 2
1953 1
1954 2
1956 2
1957 2
1958 1
1960 4
1961 2
1962 3
1963 4
1964 2
1965 3
1966 1
1967 1
1968 5
1969 3
1970 1
1971 3
1972 1
1974 2
1976 1
1977 1
1978 1
1984 1
1995 1
1996 2
1999 1
2000 1
2009 1
2014 1
2016 4
2017 4
2018 3
2019 7
2020 9
2021 9
2022 4
2023 5
2024 1

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116 results

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Page 1
Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK.
Voysey M, Clemens SAC, Madhi SA, Weckx LY, Folegatti PM, Aley PK, Angus B, Baillie VL, Barnabas SL, Bhorat QE, Bibi S, Briner C, Cicconi P, Collins AM, Colin-Jones R, Cutland CL, Darton TC, Dheda K, Duncan CJA, Emary KRW, Ewer KJ, Fairlie L, Faust SN, Feng S, Ferreira DM, Finn A, Goodman AL, Green CM, Green CA, Heath PT, Hill C, Hill H, Hirsch I, Hodgson SHC, Izu A, Jackson S, Jenkin D, Joe CCD, Kerridge S, Koen A, Kwatra G, Lazarus R, Lawrie AM, Lelliott A, Libri V, Lillie PJ, Mallory R, Mendes AVA, Milan EP, Minassian AM, McGregor A, Morrison H, Mujadidi YF, Nana A, O'Reilly PJ, Padayachee SD, Pittella A, Plested E, Pollock KM, Ramasamy MN, Rhead S, Schwarzbold AV, Singh N, Smith A, Song R, Snape MD, Sprinz E, Sutherland RK, Tarrant R, Thomson EC, Török ME, Toshner M, Turner DPJ, Vekemans J, Villafana TL, Watson MEE, Williams CJ, Douglas AD, Hill AVS, Lambe T, Gilbert SC, Pollard AJ; Oxford COVID Vaccine Trial Group. Voysey M, et al. Lancet. 2021 Jan 9;397(10269):99-111. doi: 10.1016/S0140-6736(20)32661-1. Epub 2020 Dec 8. Lancet. 2021. PMID: 33306989 Free PMC article. Clinical Trial.
SARS-CoV-2 Infection and Development of Islet Autoimmunity in Early Childhood.
Lugar M, Eugster A, Achenbach P, von dem Berge T, Berner R, Besser REJ, Casteels K, Elding Larsson H, Gemulla G, Kordonouri O, Lindner A, Lundgren M, Müller D, Oltarzewski M, Rochtus A, Scholz M, Szypowska A, Todd JA, Ziegler AG, Bonifacio E; GPPAD Study Group. Lugar M, et al. JAMA. 2023 Sep 26;330(12):1151-1160. doi: 10.1001/jama.2023.16348. JAMA. 2023. PMID: 37682551 Free PMC article.
Safety and immunogenicity of the ChAdOx1 nCoV-19 vaccine against SARS-CoV-2: a preliminary report of a phase 1/2, single-blind, randomised controlled trial.
Folegatti PM, Ewer KJ, Aley PK, Angus B, Becker S, Belij-Rammerstorfer S, Bellamy D, Bibi S, Bittaye M, Clutterbuck EA, Dold C, Faust SN, Finn A, Flaxman AL, Hallis B, Heath P, Jenkin D, Lazarus R, Makinson R, Minassian AM, Pollock KM, Ramasamy M, Robinson H, Snape M, Tarrant R, Voysey M, Green C, Douglas AD, Hill AVS, Lambe T, Gilbert SC, Pollard AJ; Oxford COVID Vaccine Trial Group. Folegatti PM, et al. Lancet. 2020 Aug 15;396(10249):467-478. doi: 10.1016/S0140-6736(20)31604-4. Epub 2020 Jul 20. Lancet. 2020. PMID: 32702298 Free PMC article. Clinical Trial.
Social factors and atherosclerosis.
Ratcliffe HL. Ratcliffe HL. Adv Cardiol. 1974;13:141-7. doi: 10.1159/000395534. Adv Cardiol. 1974. PMID: 4217560 Review. No abstract available.
Implementing sustainable primary healthcare reforms: strategies from Costa Rica.
Spigel L, Pesec M, Villegas Del Carpio O, Ratcliffe HL, Jiménez Brizuela JA, Madriz Montero A, Zamora Méndez E, Schwarz D, Bitton A, Hirschhorn LR. Spigel L, et al. Among authors: ratcliffe hl. BMJ Glob Health. 2020 Aug;5(8):e002674. doi: 10.1136/bmjgh-2020-002674. BMJ Glob Health. 2020. PMID: 32843571 Free PMC article. Review.
PHC Progression Model: a novel mixed-methods tool for measuring primary health care system capacity.
Ratcliffe HL, Schwarz D, Hirschhorn LR, Cejas C, Diallo A, Garcia-Elorrio E, Fifield J, Gashumba D, Hartshorn L, Leydon N, Mohamed M, Nakamura Y, Ndiaye Y, Novignon J, Ofosu A, Roder-DeWan S, Rwiyereka A, Secci F, Veillard JH, Bitton A. Ratcliffe HL, et al. BMJ Glob Health. 2019 Sep 13;4(5):e001822. doi: 10.1136/bmjgh-2019-001822. eCollection 2019. BMJ Glob Health. 2019. PMID: 31565420 Free PMC article. Review.
Primary Health Care as a Foundation for Strengthening Health Systems in Low- and Middle-Income Countries.
Bitton A, Ratcliffe HL, Veillard JH, Kress DH, Barkley S, Kimball M, Secci F, Wong E, Basu L, Taylor C, Bayona J, Wang H, Lagomarsino G, Hirschhorn LR. Bitton A, et al. Among authors: ratcliffe hl. J Gen Intern Med. 2017 May;32(5):566-571. doi: 10.1007/s11606-016-3898-5. Epub 2016 Dec 9. J Gen Intern Med. 2017. PMID: 27943038 Free PMC article. Review.
Optimising the timing of whooping cough immunisation in mums (OpTIMUM) through investigating pertussis vaccination in pregnancy: an open-label, equivalence, randomised controlled trial.
Calvert A, Amirthalingam G, Andrews N, Basude S, Coleman M, Cuthbertson H, England A, Greening V, Hallis B, Johnstone E, Jones CE, Karampatsas K, Khalil A, Le Doare K, Matheson M, Peregrine E, Snape MD, Vatish M, Heath PT; OpTIMUM Study Group. Calvert A, et al. Lancet Microbe. 2023 May;4(5):e300-e308. doi: 10.1016/S2666-5247(22)00332-9. Epub 2023 Apr 17. Lancet Microbe. 2023. PMID: 37080224 Free article. Clinical Trial.
116 results