القاعدة ذات الصلة
Sweden
Practice Relating to Rule 29. Medical Transports
Section A. Respect for and protection of medical transports
Sweden’s IHL Manual (1991) considers that Article 21 of the 1977 Additional Protocol I on the protection of medical vehicles has the status of customary law. 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 2.2.3, p. 18.