Botha, Zonika. R3,1bn deal to empower SA healthcare. Engineering News. 2003-11-28. South Africa's Life Healthcare to buy Britain's Alliance Medical for
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March 2017]. (原始内容存档 (PDF)于2018-01-24). The Linde Group - Gases EngineeringHealthcare -. [永久失效連結] Linde Group (页面存档备份,存于互联网档案馆) Linde North America, Inc