‘Squeaky clean’ conveys two meanings, it can refer to something that is so clean that it squeaks when rubbed, like hair after washing. It also has taken on the meaning of something creating a virtuous and wholesome image, though this is sometimes used in a derogatory way. This issue of the journal contains what could be considered a very pro-industry view on the use of biosimilars in transplantation (page 302). However, we have set this alongside a much more pragmatic hospital pharmacy view as well as some interesting articles on legal, economic and selection …

Correspondence to Professor Phil Wiffen, Pain Research Unit, Churchill Hospital, Old Rd, Oxford OX3 7LE, UK; phil.wiffen{at}ndcn.ox.ac.uk