TY - JOUR T1 - Circadian variation in witnessed out of hospital cardiac arrest. JO - Heart PY - 2000/10/01 AU - Soo LH AU - Gray D AU - Young T AU - Hampton JR ED - DO - DOI: 10.1136/heart.84.4.370 VL - 84 IS - 4 SP - 370 EP - 376 Y2 - 2025/04/16 ER -