This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the benefits and harms of stem cell treatment in adults with decompensated cirrhosis, regardless of ethnicity, sex, types of stem cells, route of stem cell injection, and administered dose.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To evaluate the acute‐phase efficacy and safety of parenteral direct thrombin inhibitors and factor Xa inhibitors in people with ACS during hospitalisation, with rank ordering by using network meta‐analysis.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: 1. To assess the comparative efficacy, safety and tolerability of pharmacological, physical, or other combinations of interventions in use for the treatment of head lice. 2. To establish amongst the used treatments which are the most effective therapies for the treatment of head lice according to their effectiveness and safety, through a network meta‐analysis.

Objectives This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the benefits and harms of corticosteroids for treatment of people with leptospirosis.

Objectives This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To determine the effects of non‐opioid analgesics in neonates (term or preterm) exposed to procedural pain compared to placebo or no drug, non‐pharmacological intervention, other analgesics, or different routes of administration.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effectiveness and safety of MDMA‐assisted psychotherapy in treating adults with PTSD.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effects of prophylactic arterial embolization compared with endoscopic haemostasis only on the risk of re‐bleeding for peptic ulcer bleeding, in patients where endoscopic haemostasis has been successful.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effects (benefits and harms) of different interventions aimed at controlling pain associated with panretinal photocoagulation, in people with severe non‐proliferative diabetic retinopathy and proliferative diabetic retinopathy, according to the classification of ETDRS 1991.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effects of midline and off‐midline wound closure methods after surgical treatment for pilonidal sinus.

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: We aim to evaluate the safety and efficacy of WHO pre‐qualified human papillomavirus (HPV) vaccines given in different dose schedules, in females and males, to prevent cervical cancer and other HPV‐related diseases by undertaking a network meta‐analysis (NMA). We will rank the different vaccines and dose schedules according to the critical outcomes.