Table 5 Combinations of keywords used in PubMed search.

From: Improving primary care management of asthma: do we know what really works?

Asthma AND primary care; n = 6535

Asthma and primary care AND outcomes; n = 1502

Management of asthma in primary care AND outcomes, n = 821

Asthma AND primary care AND outcome AND improvement; n = 1728

Asthma AND primary care AND team building; n = 14

Asthma AND primary care AND team; n = 274

Asthma AND primary care AND incentives; n = 105

Asthma AND family practice AND outcome AND improvement in adults; n = 28

Asthma AND general practice AND outcome AND improvement in adults; n = 62

Asthma AND family practice AND adults; n = 950

Asthma AND general practice; n = 622

Asthma AND quality improvement; n = 455