Category Nuances for null:

• therapeutic,
• new,
• supportive,
• rehabilitative,
• technological,
• special,
• early,
• unproven,
• medical,
• physical,
• healing,
• intensive,
• stabilizing,
• simple,
• traditional,
• respiratory,
• alternative,
• regular,
• restorative,
• corrective,
• expensive,

Simple Categories for null:

• service,
• intervention,
• action,
• treatment,
• support,
• therapy,
• measure,
• modality,
• practice,
• attention,
• procedure,