Implications of selection bias for the COVID Symptom Tracker Study
Neil M Davies,Giulia Mancano,Annie Herbert, Matt J Tudball,Tim T Morris,Gareth J Griffith,Kate M Tilling,George Davey Smith,Marcus R Munafo,Josephine G Walker,Gibran Hemani,Luisa Zuccolo,Jonathan A C Sterne Science(2020)
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