ERR: Diagnosing VAP is challenging due to inaccurate clinical signs and tests. This review highlights the lack of reliable biomarkers, although some show promise. As the reference standard is problematic, subphenotyping VAP VATICAN (Ventilator Associated Tracheobronchitis Initiative to Conduct Antibiotic Evaluation): protocol for a multicenter randomized open label trial of watchful waiting versus antimicrobial therapy for ventilator associated tracheobronchitis Almost all vapes contain nicotine: health effects still unclear The Australian Birmingham company relaunches bankrupt Atherotech's test al.com