Dipak Kotecha clinician scientist in cardiovascular medicine, Luis Manzano professor of internal medicine, Henry Krum professor of medicine, Giuseppe Rosano professor of cardiology, Jane Holmes statistician, Douglas G Altman professor of statistics in medicine et al
Kotecha D, Manzano L, Krum H, Rosano G, Holmes J, Altman D G et al.
Effect of age and sex on efficacy and tolerability of β blockers in patients with heart failure with reduced ejection fraction: individual patient data meta-analysis
BMJ 2016; 353 :i1855
doi:10.1136/bmj.i1855