Sigma HealthTech Selected as Pre-Qualified Vendor for Virtual Visits Solutions by Sigma HealthTech | Jun 9, 2021 | Press ReleaseThe platform allows Canadian healthcare providers and frontline workers to conduct secure patient communication and engagement. June 09, 2021 08:00 AM Eastern Daylight Time TORONTO–(BUSINESS WIRE)–Sigma HealthTech (Sigma), a leading provider of...