APA (7th ed.) Citation

Retraction: “Two-day versus seven-day course of levofloxacin in acute COPD exacerbation: a randomized controlled trial”. SAGE Publishing.

Chicago Style (17th ed.) Citation

Retraction: “Two-day Versus Seven-day Course of Levofloxacin in Acute COPD Exacerbation: A Randomized Controlled Trial”. SAGE Publishing.

MLA (9th ed.) Citation

Retraction: “Two-day Versus Seven-day Course of Levofloxacin in Acute COPD Exacerbation: A Randomized Controlled Trial”. SAGE Publishing.

Warning: These citations may not always be 100% accurate.