“…Three articles discussed all predefined secondary outcomes of this review [22,24,30]. Three articles reported short term variables within the first 24 h of life [31,32,34], 10 articles between day 1 and day 7 of life [16,22,[26][27][28]30,31,[46][47][48] and eight articles after the first week of life [22,24,[26][27][28]30,32,34], correlating with early, classic and late VKDB, respectively.…”