Fig. 1
From: Hospital-based prospective study of pertussis in infants and close contacts in Tehran, Iran
Flow chart of index (a) and contact (b) cases included in the analysis
Fig. 1 | BMC Infectious Diseases
From: Hospital-based prospective study of pertussis in infants and close contacts in Tehran, Iran
Flow chart of index (a) and contact (b) cases included in the analysis