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Home Cochrane reviews Browse free summaries About Cochrane Reviews Example Global impact Most visited The Cochrane Library Full text Press releases User training News Newsroom New reviews Newsletters Opportunities Discussion lists Events Calendars Colloquia Workshops Training resources Training homepage For Cochrane Library users For authors & RGCs For handsearchers & TSCs About us The organization Evidence-based healthcare Support Review Groups & Centres Press & background docs Getting involved Administrative resources Steering Group Contact us

by Alphabet: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Other Full list Alphabetically: [O] View stages (what is this?): all Titles Protocols Reviews Occlusal adjustment for treating and preventing temporomandibular joint disorders Occlusal splints for treating sleep bruxism (tooth grinding) Occupational therapy for multiple sclerosis Occupational therapy for patients with Parkinson's disease Occupational therapy for patients with problems in activities of daily living after stroke Occupational therapy for rheumatoid arthritis Oestrogen and progestogen hormone replacement therapy for peri-menopausal and post-menopausal women: weight and body fat distribution Oestrogen supplementation, mainly diethylstilbestrol, for preventing miscarriages and other adverse pregnancy outcomes Oestrogens alone or with amniotomy for cervical ripening or induction of labour Oestrogens and progestins for preventing and treating postpartum depression New Oestrogens for preventing recurrent urinary tract infection in postmenopausal women Oestrogens for urinary incontinence in women withdrawn Oil-soluble versus water-soluble media for assessing tubal patency with hysterosalpingography or laparoscopy in subfertile women Olanzapine alone or in combination for acute mania Olanzapine for schizophrenia Olanzapine IM or velotab for acutely disturbed/agitated people with suspected serious mental illnesses Omega 3 fatty acid for the prevention of dementia Omega 3 fatty acids (fish oil) for maintenance of remission in Crohn's disease Omega 3 fatty acids (fish oil) for maintenance of remission in ulcerative colitis Omega 3 fatty acids for prevention and treatment of cardiovascular disease Omega-3 fatty acids (from fish oils) for cystic fibrosis New Omega-3 fatty acids for bipolar disorder Omega-3 fatty acids for intermittent claudication Omega-3 polyunsaturated fatty acids (PUFA) for type 2 diabetes mellitus On-site mental health workers in primary care: effects on professional practice Once versus twice daily LMWH for the initial treatment of venous thromboembolism Once-daily versus multiple-daily dosing with intravenous aminoglycosides for cystic fibrosis One dose per day compared to multiple doses per day of gentamicin for treatment of suspected or proven sepsis in neonates One topical fluoride (toothpastes, or mouthrinses, or gels, or varnishes) versus another for preventing dental caries in children and adolescents Open general medical wards versus specialist psychiatric units for acute psychoses Open Mesh versus non-Mesh for groin hernia repair Open retropubic colposuspension for urinary incontinence in women Operative and non-operative treatment options for dislocation of the hip following total hip arthroplasty Operative procedures for fissure in ano Operative versus conservative management for 'fetal distress' in labour Operative versus non-operative treatment for thoracolumbar burst fractures without neurological deficit Opiate treatment for opiate withdrawal in newborn infants Opioid antagonists for alcohol dependence Opioid antagonists for smoking cessation Opioid antagonists under heavy sedation or anaesthesia for opioid withdrawal Opioid antagonists with minimal sedation for opioid withdrawal Opioid switching to improve pain relief and drug tolerability Opioids for chronic low-back pain Opioids for neonates receiving mechanical ventilation Opioids for neuropathic pain Opioids for the management of breakthrough (episodic) pain in cancer patients Opioids for the palliation of breathlessness in terminal illness New Opportunities provision for preventing youth gang involvement for children and young people (7-16) Optimal duration of exclusive breastfeeding Optimal timing for intravenous administration set replacement Options for self-management education for adults with asthma Oral 5-aminosalicylic acid for induction of remission in ulcerative colitis Oral 5-aminosalicylic acid for maintenance of medically-induced remission in Crohn's Disease Oral 5-aminosalicylic acid for maintenance of remission in ulcerative colitis Oral anti-oestrogens and medical adjuncts for subfertility associated with anovulation Oral anti-pseudomonal antibiotics for cystic fibrosis Oral antibiotics versus parenteral antibiotics for severe pneumonia in children Oral anticoagulants for preventing stroke in patients with non-valvular atrial fibrillation and no previous history of stroke or transient ischemic attacks Oral anticoagulants versus antiplatelet therapy for preventing further vascular events after transient ischaemic attack or minor stroke of presumed arterial origin Oral anticoagulants versus antiplatelet therapy for preventing stroke in patients with non-valvular atrial fibrillation and no history of stroke or transient ischemic attacks Oral anticoagulation for prolonging survival in patients with cancer Oral appliances and functional orthopaedic appliances for obstructive sleep apnoea in children Oral appliances for obstructive sleep apnoea Oral beta-blockers for mild to moderate hypertension during pregnancy Oral betamimetics for maintenance therapy after threatened preterm labour Oral calorie supplements for cystic fibrosis Oral contraceptive pills for heavy menstrual bleeding Oral contraceptives containing drospirenone for premenstrual syndrome Oral contraceptives for functional ovarian cysts Oral corticosteroids for stable chronic obstructive pulmonary disease Oral deferiprone for iron chelation in people with thalassaemia Oral fluphenazine versus placebo for schizophrenia Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth-weight neonates Oral immunoglobulin for the prevention of rotavirus infection in low birth weight infants Oral immunoglobulin for the treatment of rotavirus diarrhoea in low birth weight infants Oral methylxanthines for bronchiectasis Oral misoprostol for induction of labour Oral morphine for cancer pain Oral naltrexone maintenance treatment for opioid dependence Oral non steroid anti-inflammatories for children and adults with bronchiectasis Oral non-steroidal anti-inflammatory drug therapy for cystic fibrosis Oral oestrogen and combined oestrogen/progestogen therapy versus placebo for hot flushes Oral or topical nasal steroids for hearing loss associated with otitis media with effusion in children Oral prostaglandin E2 for induction of labour Oral protein calorie supplementation for children with chronic disease Oral steroids for adhesive capsulitis Oral steroids for bronchiectasis (stable and acute exacerbations) Oral steroids for cystic fibrosis Oral steroids for nasal polyps Oral sumatriptan for acute migraine Oral theophylline for chronic obstructive pulmonary disease Oral treatments for fungal infections of the skin of the foot. New Oral vasodilators for primary Raynaud's phenomenon Oral versus injectable ovulation induction agents for unexplained subfertility Oral versus intra-vaginal imidazole and triazole anti-fungal treatment of uncomplicated vulvovaginal candidiasis (thrush) Oral versus intravenous antibiotic treatment for febrile neutropenia in cancer patients Oral versus intravenous rehydration for treating dehydration due to gastroenteritis in children Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency Oral water soluble contrast for the management of adhesive small bowel obstruction Oral xanthines as maintenance treatment for asthma in children Oral zinc for arterial and venous leg ulcers Organisational infrastructures to promote evidence based nursing practice Organised inpatient (stroke unit) care for stroke Orientation and mobility training for adults with low vision Orthodontic and orthopaedic treatment for anterior open bite in children Orthodontic treatment for deep bite and retroclined upper front teeth in children Orthodontic treatment for posterior crossbites Orthodontic treatment for prominent upper front teeth in children Orthotic devices for the treatment of tennis elbow Orthotic devices for treating patellofemoral pain syndrome Osteotomy for treating knee osteoarthritis Osteotomy, compression and reaming techniques for internal fixation of extracapsular hip fractures Outcome measures and needs assessment tools for schizophrenia and related disorders Outcomes of patients who participate in randomised controlled trials compared to similar patients receiving similar interventions who do not participate Outreach and Early Warning Systems (EWS) for the prevention of Intensive Care admission and death of critically ill adult patients on general hospital wards Ovarian ablation for early breast cancer Ovarian stimulation protocols (anti-oestrogens, gonadotrophins with and without GnRH agonists/antagonists) for intrauterine insemination (IUI) in women with subfertility Over-the-counter (OTC) medications to reduce cough as an adjunct to antibiotics for acute pneumonia in children and adults Over-the-counter medications for acute cough in children and adults in ambulatory settings withdrawn Ovulation induction with urinary follicle stimulating hormone versus human menopausal gonadotropin for clomiphene-resistant polycystic ovary syndrome Ovulation suppression for endometriosis Oxatomide for stable asthma in adults and children Oxcarbazepine add-on for drug-resistant partial epilepsy Oxcarbazepine in the maintenance treatment of bipolar disorder Oxcarbazepine versus phenytoin monotherapy for epilepsy Oximes for acute organophosphate pesticide poisoning Oxygen therapy during exercise training in chronic obstructive pulmonary disease Oxygen therapy for cystic fibrosis Oxygen therapy in the pre-hospital setting for acute exacerbations of chronic obstructive pulmonary disease Oxytocin agonists for preventing postpartum haemorrhage withdrawn Oxytocin for prelabour rupture of membranes at or near term Oxytocin receptor antagonists for inhibiting preterm labour Ozone therapy for the treatment of dental caries

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