Figure 1.
Lung ultrasound images. (A) Absent B‐lines (no B‐lines). (B) Rare B‐lines (≤3 B‐lines). (C) Numerous B‐lines (>3 B‐lines). (D) Confluent B‐lines (multiple B‐lines blended together).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.