Authors: J T Lear; B B Tan; A G Smith; W Bowers; P W Jones; A H Heagerty; R C Strange; A A Fryer Journal: J R Soc Med Date: 1997-07 Impact factor: 5.344
Authors: Joel T M Bamford; Sujoy Ray; Alfred Musekiwa; Christel van Gool; Rosemary Humphreys; Edzard Ernst Journal: Cochrane Database Syst Rev Date: 2013-04-30