Assertion: gangrene's cause | /r/HasProperty | physical causes
Facets:
Source sentences:
text: External causes include mechanical causes (for example, traumas accompanied by the crushing of tissues with impairment of the integrity of blood vessels and nerves, bedsores), physical causes (burns, frostbite), exposure to ionizing radiation, and chemical causes (exposure of the organism to strong acids and alkalis, arsenic, phosphorus, and so on).
text: External causes include mechanical causes (for example, traumas accompanied by the crushing of tissues with impairment of the integrity of blood vessels and nerves, bedsores), physical causes (burns, frostbite), exposure to ionizing radiation, and chemical causes (exposure of the organism to strong acids and alkalis, arsenic, phosphorus, and so on).