Redigert av Ali B.A.K., MB BChir, MA, MRCP(UK), AFHEA, PGCert (Med Ed) (Academic Clinical Fellow (Cardiology an, Zeshan, BM,BSc,MSc,BM MRCPCH,FAcadMEd,MRCPS(Glasg) (History and Philosophy of Science, University o, 2023.Del av serien Unofficial Guides.