Assertion: rheumatoid arthritis | /r/HasProperty | difficult to diagnose
Facets:
value: unfortunately
type: MANNER
value: sometimes
type: TEMPORAL
Source sentences:
text: Rheumatoid arthritis can be difficult to diagnose in its early stages because the early signs and symptoms mimic those of many other diseases.
text: Unfortunately, it can sometimes be difficult to detect and diagnose RA because early symptoms are often subtle and nonspecific.
text: Rheumatoid arthritis can be difficult to diagnose in its early stages because the early signs and symptoms mimic those of many other diseases.