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</div><!-- Main nav --> </header><!-- /header --> <div class="main-container container" id="page"> <!-- #page is for back to top to work --> <!-- Remove heading --> <div class="row"> <section class="col-sm-12" > <a id="main-content"></a> <div class="region region-content"> <section id="block-system-main" class="block block-system clearfix"> <div class="panel-display row bootstrap-twocol-8-4" id="highwire-advanced-search-form"> <div class="panel-panel column-container col-xs-12 col-sm-8 col-md-8 col-lg-8"> <div class="panel-pane pane-custom pane-1" id="advanced-search-explanation" > <div class="pane-content"> <h1 class="advanced-search-title">The BMJ advanced search</h1> <p>Use this form to search the full text of every article published by The BMJ from the present day back to January 1840.</p> <p>Please note that occasionally we change article titles for print. 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form-group"> <label for="edit-pubyear">Year </label> <input class="form-control form-text" type="text" id="edit-pubyear" name="pubyear" value="" size="60" maxlength="128" /> </div> <div class="form-type-textfield form-item-volume form-item form-group"> <label for="edit-volume">Volume </label> <input class="form-control form-text" type="text" id="edit-volume" name="volume" value="" size="60" maxlength="128" /> </div> <div class="element-hidden"><div class="form-type-textfield form-item-issue form-item form-group"> <label for="edit-issue">Issue </label> <input class="element-hidden form-control form-text" type="text" id="edit-issue" name="issue" value="" size="60" maxlength="128" /> </div> </div><div class="form-type-textfield form-item-firstpage form-item form-group"> <label for="edit-firstpage">First page/elocator </label> <input class="form-control form-text" type="text" id="edit-firstpage" name="firstpage" value="" size="60" maxlength="128" /> </div> <div class="element-hidden"><div class="form-type-textfield form-item-isbn form-item form-group"> <label for="edit-isbn">ISBN </label> <input class="element-hidden form-control form-text" type="text" id="edit-isbn" name="isbn" value="" size="60" maxlength="128" /> </div> </div> </div> </div> </fieldset> <fieldset class="panel panel-default form-wrapper"> <legend class="panel-heading"> <a href="#edit-doi" class="panel-title fieldset-legend" data-toggle="collapse"> DOI </a> </legend> <div id="edit-doi" class="panel-collapse collapse fade in"> <div class="panel-body"> <div class="form-type-textfield form-item-doi form-item form-group"> <label for="edit-doi--2">Specify DOI </label> <input placeholder="e.g. 10.9999/123XYZ456" class="form-control form-text" type="text" id="edit-doi--2" name="doi" value="" size="60" maxlength="128" /> </div> </div> </div> </fieldset> <div class="form-actions form-wrapper form-group" id="edit-actions-top"><input class="btn btn-primary form-submit" type="submit" id="search_rightsidebar_submit_1755835378" name="op" value="Submit" /><button class="button-reset btn-default btn" type="reset" label="Clear">Clear</button></div><fieldset class="panel panel-default form-wrapper" id="edit-limits"> <legend class="panel-heading"> <div class="panel-title fieldset-legend"> Filter by </div> </legend> <div class="panel-body"> <p class="help-block"> <h3>Limit your results by searching:</h3> </p> <div class="container-inline-date"><div class="form-type-date-popup form-item-limit-from form-item form-group"> <label for="edit-limit-from">From </label> <div id="edit-limit-from" class="date-padding"><div class="form-type-textfield form-item-limit-from-date form-item form-group" data-toggle="tooltip" title=" e.g., 2024-11-29"> <label class="element-invisible" for="edit-limit-from-datepicker-popup-0">Date </label> <input class="form-control form-text" type="text" id="edit-limit-from-datepicker-popup-0" name="limit_from[date]" value="1840-01-01" size="20" maxlength="30" /> </div> </div> </div> </div><div class="container-inline-date"><div class="form-type-date-popup form-item-limit-to form-item form-group"> <label for="edit-limit-to">To </label> <div id="edit-limit-to" class="date-padding"><div class="form-type-textfield form-item-limit-to-date form-item form-group" data-toggle="tooltip" title=" e.g., 2024-11-29"> <label class="element-invisible" for="edit-limit-to-datepicker-popup-0">Date </label> <input class="form-control form-text" type="text" id="edit-limit-to-datepicker-popup-0" name="limit_to[date]" value="2024-11-29" size="20" maxlength="30" /> </div> </div> </div> </div><div class="element-hidden"><div class="form-type-select form-item-jcode form-item form-group"> <label for="edit-jcode">Include articles in Journal: </label> <select class="element-hidden form-control form-select" id="edit-jcode" name="jcode"><option value="">-- All Journals --</option></select> </div> </div><div class="form-type-select 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transplantation</option><option value="676">Assisted dying</option><option value="512">Asthma</option><option value="338">Bilirubin disorders</option><option value="677">Bioethics</option><option value="536">Biological agents</option><option value="203">Brain stem / cerebellum</option><option value="282">Breast cancer</option><option value="615">Breast surgery</option><option value="1512">Bronchiolitis</option><option value="513">Bronchitis</option><option value="283">CNS cancer</option><option value="76">Calcium and bone</option><option value="285">Cancer: dermatological</option><option value="296">Cancer: small intestine</option><option value="13">Cardiomyopathy</option><option value="616">Cardiothoracic surgery</option><option value="1491">Cerebral palsy</option><option value="268">Cervical cancer</option><option value="269">Cervical screening</option><option value="86">Changing physician behavior</option><option value="367">Chemical pathology</option><option value="300">Chemotherapy</option><option value="339">Child abuse</option><option value="408">Child and adolescent psychiatry</option><option value="340">Child and adolescent psychiatry (paedatrics)</option><option value="342">Child health</option><option value="257">Childhood nutrition</option><option value="341">Childhood nutrition (paediatrics)</option><option value="499">Chronic renal failure</option><option value="61">Clinical diagnostic tests</option><option value="1484">Clinical ethics</option><option value="162">Clinical genetics</option><option value="1468">Clinical trials (epidemiology)</option><option value="678">Codes of professional ethics</option><option value="284">Colon cancer</option><option value="205">Coma and raised intracranial pressure</option><option value="653">Communication</option><option value="679">Competing interests (ethics)</option><option value="47">Complementary medicine</option><option value="680">Confidentiality</option><option value="343">Congenital disorders</option><option value="18">Congenital heart disease</option><option value="537">Connective tissue disease</option><option value="781">Continuous professional development</option><option value="270">Contraception</option><option value="206">Cranial nerves</option><option value="516">Cystic fibrosis</option><option value="163">Cytogenetics</option><option value="368">Cytopathology</option><option value="538">Degenerative joint disease</option><option value="415">Delirium</option><option value="55">Dentistry and oral medicine</option><option value="57">Dermatology</option><option value="344">Developmental paediatrics</option><option value="77">Diabetes</option><option value="500">Dialysis</option><option value="258">Diet</option><option value="491">Disability</option><option value="1377">Disaster response</option><option value="775">Doctors\&#039; morale and well being</option><option value="271">Domestic violence</option><option value="1485">Drug issues</option><option value="941">Drug misuse</option><option value="383">Drug misuse (including addiction)</option><option value="1560">Drugs and medicines</option><option value="416">Drugs misuse (including addiction)</option><option value="208">Drugs: CNS (not psychiatric)</option><option value="19">Drugs: cardiovascular system</option><option value="78">Drugs: endocrine system</option><option value="101">Drugs: gastrointestinal system</option><option value="539">Drugs: musculoskeletal and joint diseases</option><option value="272">Drugs: obstetrics and gynaecology</option><option value="422">Drugs: psychiatry</option><option value="518">Drugs: respiratory system</option><option value="64">Ear, nose and throat/otolaryngology</option><option value="423">Eating disorders</option><option value="20">Echocardiography</option><option value="90">Effectiveness of care</option><option value="168">Elder abuse</option><option value="682">End of life decisions (ethics)</option><option value="169">End of life decisions (geriatric medicine)</option><option value="359">End of life decisions (palliative care)</option><option value="286">Endocrine cancer</option><option value="102">Endoscopy</option><option value="939">Environmental issues</option><option value="1470">Epidemiologic studies</option><option value="209">Epilepsy and seizures</option><option value="683">Ethics of abortion</option><option value="685">Ethics of reproduction</option><option value="695">Ethnic studies</option><option value="686">Experiments in vivo</option><option value="345">Failure to thrive</option><option value="273">Family planning</option><option value="540">Fibromyalgia</option><option value="502">Fluid electrolyte and acid-base disturbances</option><option value="103">GI bleeding</option><option value="287">Gastric cancer</option><option value="617">Gastrointestinal surgery</option><option value="301">Gene therapy</option><option value="157">General practice / family medicine</option><option value="618">General surgery</option><option value="164">Genetic screening / counselling</option><option value="785">Getting and changing jobs (including job descriptions and contracts)</option><option value="94">Guidelines</option><option value="288">Gynecological cancer</option><option value="175">Haematology (incl blood transfusion)</option><option value="289">Head and neck cancer</option><option value="210">Headache (including migraine)</option><option value="747">Health economics</option><option value="944">Health education</option><option value="945">Health of indigenous peoples</option><option value="1364">Health policy</option><option value="967">Health promotion</option><option value="763">Health service research</option><option value="21">Heart failure</option><option value="290">Hepatic cancer</option><option value="369">Histopathology</option><option value="797">History taking and the physical examination</option><option value="946">Homicide</option><option value="360">Hospice</option><option value="947">Housing and health</option><option value="948">Human rights</option><option value="211">Hydrocephalus</option><option value="25">Hypertension</option><option value="751">IT</option><option value="177">Immunology (including allergy)</option><option value="427">Impulse control disorders</option><option value="274">Incontinence</option><option value="347">Infant health</option><option value="348">Infant nutrition (including breastfeeding)</option><option value="109">Infection (gastroenterology)</option><option value="212">Infection (neurology)</option><option value="1330">Infectious diseases</option><option value="372">Inflammation</option><option value="117">Inflammatory bowel disease</option><option value="750">Information management</option><option value="687">Informed consent</option><option value="949">Injury</option><option value="753">Internet</option><option value="517">Interstitial lung disease</option><option value="31">Ischaemic heart disease</option><option 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