• pdf 'Health and fracking: Should the medical profession be concerned?', an article published in the South African medical Journal Vol 104, No.5 (2014). Authors: The Revd Dr Rachel Mash, Environmental Coordinator of the Anglican Church of Southern Africa, Jolynn Minnaar, journalist and director of Unearthed, and Professor Bob Mash, Head of Family Medicine and Primary Care at Stellenbosch University, South Africa.