1 Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; University West, Trollhättan, Sweden. Electronic address: susanna.arveklev-hoglund@hv.se.
2 Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Division of Neonatology, Sahlgrenska University Hospital, Gothenburg, Sweden.
3 Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
4 Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Østfold University College, Halden, Norway; School of Nursing and Midwifery, Griffith University, Australia.