Use of core outcome sets was low in clinical trials published in major medical journals by Matvienko-Sikar, K, Avery, K, Blazeby, J, Devane, D, Dodd, S, Egan, AM, Gorst, SL, Hughes, K, Jacobsen, P, Kirkham, JJ, Kottner, J, Mellor, K, Millward, CP, Patel, S, Quirke, F, Saldanha, IJ, Smith, V, Terwee, CB, Young, AE, Williamson, PR

A core outcome set for post-COVID-19 condition in adults for use in clinical practice and research: an international Delphi consensus study by Munblit, D, Nicholson, T, Akrami, A, Apfelbacher, C, Chen, J, De Groote, W, Diaz, JV, Gorst, SL, Harman, N, Kokorina, A, Olliaro, P, Parr, C, Preller, J, Schiess, N, Schmitt, J, Seylanova, N, Simpson, F, Tong, A, Needham, DM, Williamson, PR, Sigfrid, LA

Studying the post-COVID-19 condition: research challenges, strategies, and importance of Core Outcome Set development by Munblit, D, Nicholson, TR, Needham, DM, Seylanova, N, Parr, C, Chen, J, Kokorina, A, Sigfrid, L, Buonsenso, D, Bhatnagar, S, Thiruvengadam, R, Parker, AM, Preller, J, Avdeev, S, Klok, FA, Tong, A, Diaz, JV, Groote, WD, Schiess, N, Akrami, A, Simpson, F, Olliaro, P, Apfelbacher, C, Rosa, RG, Chevinsky, JR, Saydah, S, Schmitt, J, Guekht, A, Gorst, SL, Genuneit, J, Reyes, LF, Asmanov, A, O'Hara, ME, Scott, JT, Michelen, M, Stavropoulou, C, Warner, JO, Herridge, M, Williamson, PR