“…All of these studies were conducted in North America or Europe (Eight from the United States [19–26], three from Italy [27–29], two from the United Kingdom [30, 31], two from Denmark [32, 33], and one from Austria (34)). There were seven qualitative studies (20, 21, 23, 29, 32–34), three observational studies (22, 24, 27), two randomized control trials (19, 26), one scoping review (28), one systematic review (31), one survey (30), and one quality improvement project (25). Among the 16 studies, five studies discussed the impact and use of journals or diaries for parents with infants warded in the NICU (19–21, 26, 34), whereas another nine focused on the use of diaries in the PICU (22–25, 27, 29, 30, 32, 33).…”