Dental Pulp Necrosis

• Folktandvården Region Kronoberg — Vaxjo, Kronoberg County, Sweden
• Folktandvården Region Norrbotten — Luleå, Norrbotten County, Sweden
• Folktandvården Region Kalmar — Kalmar, Sweden
• Smile Tandvård — Luleå, Sweden

• Mansoura university — Al Mansurah, Egypt

• Faculty of dentistry Ain shams university — Cairo, Egypt

• National and Kapodistrian University of Athens — Athens, Greece

• Postgraduate Dental Clinic Jordan University of Science and Technology — Irbid, Jordan

• Punjab Dental Hospital, Lahore — Lahore, Punjab Province, Pakistan

Not specified

• Endodontic Clinic, Faculty of Dentistry, Suez Canal University — Ismailia, Ismailia Governorate, Egypt

Not specified

• Faculty of Oral and Dental Medicine , Future University in Egypt — Cairo, New Cairo, Egypt