Mesenchymal Stem Cell Administration in Patients with Chronic Obstructive Pulmonary Disease: State of the Science

Table 1

Search strategies used in each database.

Database	Search strategy	Results
CENTRAL	MeSH descriptor: [Lung Diseases, Obstructive] explode all trees AND; MeSH descriptor: [Stem Cell Transplantation] explode all trees	4
PubMed	Pulmonary Disease, Chronic Obstructive[Mesh] AND Stem Cell Transplantation[Mesh] AND English[Language] AND clinical trial[Publication Type]	4
Medline (Ovid)	exp Pulmonary Disease, Chronic Obstructive/AND exp Mesenchymal Stem Cell Transplantation/AND Clinical Trial [Publication Type]	16
Embase	obstructive airway disease/exp/mj AND stem cell transplantation/exp/mj AND ([controlled clinical trial]/lim OR [randomized controlled trial]/lim) AND [English]/lim	9
ClinicalTrial.gov	Advanced search with Lung Diseases, Obstructive for Conditions and stem cell for Interventions	34
Author search	From references of included articles

Krampera et al., 2006 [6].