Category Nuances for back_strain:

• musculoskeletal,
• occupational,
• serious,
• relevant,
• common,
• acute,
• related,
• traumatic,
• unpleasant,
• simple,
• adverse,
• physical,
• spinal,
• medical,
• moderate,

Simple Categories for back_strain:

• disorder,
• injury,
• strain,
• case,
• discomfort,
• condition,
• sickness,