Assertion: calcium | /r/HasProperty | subnormal
Facets:
value: for long periods of time
type: TEMPORAL
value: for months
type: TEMPORAL
value: for years
type: TEMPORAL
Source sentences:
text: If the calcium is subnormal for long periods of time (months or years), these muscle symptoms may lessen but other problems may eventually develop - for instance lens cataracts (affecting vision), dry skin and hair, brittle nails and chronic tiredness.