Lancet : a journal of British and foreign medicine, surgery, obstetrics, fysiology, chemistry, pharmacology, public health and news Zv. 6: Vol. 352 no. 9141-9145 1998. The Lancet London : Lancet. s. 1641-2036ISSN 0140-6736   [1, z toho volných 0, prezenčně 1]