. 2017 Jun 10;7(6):e015562. doi: 10.1136/bmjopen-2016-015562

Table 1C.

CENTRAL search strategy

1	‘MeSH descriptor: (Thrombosis) explode all trees’ or ‘MeSH descriptor: (Pulmonary Embolism) explode all trees’ or thromb:ti,ab or phlebothrombosis or ‘deep vein thrombosis’ or ‘pulmonary embolism’ or ‘venous thromboembolic event’
2	‘MeSH descriptor: (Neoplasms) explode all trees’ or ‘MeSH descriptor: (Medical Oncology) explode all trees’ or tumour:ti,ab or tumour:ti,ab or onco:ti,ab or neopl:ti,ab or cancer*:ti,ab
3	‘MeSH descriptor: (Early Diagnosis) explode all trees’ or ‘MeSH descriptor: (Mass Screening) explode all trees’ or screen:ti,ab or occult:ti,ab
4	{AND #1-#3} (limited to: Publication Year from 2008 in Trials)

1	‘MeSH descriptor: (Thrombosis) explode all trees’ or ‘MeSH descriptor: (Pulmonary Embolism) explode all trees’ or thromb:ti,ab or phlebothrombosis or ‘deep vein thrombosis’ or ‘pulmonary embolism’ or ‘venous thromboembolic event’
2	‘MeSH descriptor: (Neoplasms) explode all trees’ or ‘MeSH descriptor: (Medical Oncology) explode all trees’ or tumour:ti,ab or tumour:ti,ab or onco:ti,ab or neopl:ti,ab or cancer*:ti,ab
3	‘MeSH descriptor: (Early Diagnosis) explode all trees’ or ‘MeSH descriptor: (Mass Screening) explode all trees’ or screen:ti,ab or occult:ti,ab
4	{AND #1-#3} (limited to: Publication Year from 2008 in Trials)