Erratum to: Attempts to improve human ovarian transplantation outcomes of needle immersed vitrification and slow-freezing by host and graft treatments

Purpose To investigate if needle-immersed vitrification or slow-freezing yields better implantation results for human ovarian tissue and which method benefits more when combined with the “improvement protocol” of host melatonin treatment and graft incubation with biological glue + vitamin E + vascular endothelial growth factor-A.