“…Effect modifiers/prognostic factors have been listed without a justification of their source in 14 cases [73,75,80,82,84,87,88,91,93,94,100,103,106,111]. Expert/clinician opinion was obtained in seven cases [78,95,97,101,102,104,105]. The relevant covariates were defined based on literature review [86,109] and on statistical significance [71,96], in two cases each.…”