Rafael J. Sierra

A Systematic Approach to the Plain Radiographic Evaluation of the Young Adult Hip

John C. Clohisy, John C. Carlisle, Paul E. Beaulé et al. · Journal of Bone and Joint Surgery · 2008 · 1.2K citations · Full text

Plain Radiographic Evaluation, Case Series, John C. Md +17

COVID-19 vaccine coverage in health-care workers in England and effectiveness of BNT162b2 mRNA vaccine against infection (SIREN): a prospective, multicentre, cohort study

Victoria Hall, Sarah Foulkes, Ayoub Saei et al. · The Lancet · 2021 · 829 citations · Full text

Vaccination, Preventive Medicine, Vaccine Development +11

SARS-CoV-2 infection rates of antibody-positive compared with antibody-negative health-care workers in England: a large, multicentre, prospective cohort study (SIREN)

Victoria Hall, Sarah Foulkes, André Charlett et al. · The Lancet · 2021 · 732 citations · Full text

Long Covid, Sars-cov-2 Infection Rates, Covid-19 Pandemic +6

Simulator Training for Laparoscopic Suturing Using Performance Goals Translates to the Operating Room

James R. Korndorffer, Rafael J. Sierra, Cheri Touchard et al. · Journal of the American College of Surgeons · 2005 · 413 citations

Ischial Spine Projection into the Pelvis

Fabian Kalberer, Rafael J. Sierra, Sanjeev Madan et al. · Clinical Orthopaedics and Related Research · 2008 · 330 citations · Full text

Acetabular Retroversion, Gross Anatomy, Imaging Anatomy +15