Letter to the Editor: Central nervous system relapse rate and dose intensification in poor risk metastatic germ cell tumours—A comment on: 'Patterns of relapse in poor prognosis germ cell tumours in the GETUG-13 trial: Implications for the assessment of brain metastases.' by Loriot and colleagues. (May 2018) - Alifrangis, Constantine; Wilson, Peter; Shamash, Jonathan