<https://sclerodermanews.com/2019/06/03/mortality-rates-among-ssc-patients-unchanged-still-high/#sso/blog.posting>
<http://schema.org/keywords>
"antibodies, cohort study, heart and respiratory complication, Meta-analysis, mortality, prognosis, risk"
<https://sclerodermanews.com/2019/06/03/mortality-rates-among-ssc-patients-unchanged-still-high/>