claim: Coughing up blood in the morning is one symptom of pulmonary embolism.
evidence: Safi Khanlu -LRB- صفي خانلو , also Romanized as Safi Khanlu -RRB- is a village in Qeshlaq Rural District , in the Central District of Ahar County , East Azerbaijan Province , Iran .. Province. Provinces of Iran. East Azerbaijan. East Azerbaijan Province. County. Counties of Iran. Ahar. Ahar County. Central. Central District ( Ahar County ). Rural District. Rural Districts of Iran. Qeshlaq. Qeshlaq Rural District ( Ahar County ). Qeshlaq Rural District. Qeshlaq Rural District ( Ahar County ). Central District. Central District ( Ahar County ). Ahar County. Ahar County. East Azerbaijan Province. East Azerbaijan Province. Iran. Iran. At the 2006 census , its population was 73 , in 15 families .