Alveolar recruitment improves ventilation during thoracic surgery: a randomized controlled trial Short-term preoperative smoking cessation and postoperative complications: a systematic review and meta-analysis Metoclopramide for nausea and vomiting prophylaxis during and after Caesarean delivery: a systematic review and meta-analysis Labour analgesia: a randomised, controlled trial comparing intravenous remifentanil and epidural analgesia with ropivacaine and fentanyl [...]