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Table 2 Time schedule of ancillary study

From: Autologous full-thickness skin graft as reinforcement in parastomal hernia repair: a randomised controlled trial

  Study period
  Preoperative Operation Postoperative Analyses
Timepoint − 1 day 0 1 day 3 months 12 months tx
Interventions:
Fascia sample   X     X
Venous blood sample X X X X X X
Subgroup intervention:
Needle biopsy      X X
Assessments:
List baseline variables X      
List interventional variables   X