Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Prevalence and diagnosis of chronic respiratory symptoms.

Literature DB >> 2504367

Prevalence and diagnosis of chronic respiratory symptoms.

Abstract

Source DB: PubMed Journal: BMJ ISSN： 0959-8138

× No keyword cloud information.

2 in total

Authors: P Littlejohns; S Ebrahim; R Anderson
Journal: BMJ Date: 1989-06-10

Authors: S J Pearce; V Posner; A J Robinson; J R Barton; J E Cotes
Journal: Thorax Date: 1985-11 Impact factor: 9.139

2 in total