Bill Byrom and Brian Tiplady are the editors of a book on electronic patient reported outcomes (ePRO) published by Gower. In fact this is the first book to be published on this topic.
Both editors have extensive experience in this area of clinical trials methodology, and the book brings together other authors with expertise in the area, including some of the pioneers who first used portable devices and phone systems as patient diaries in the early and mid-90s.
You can read a sample chapter from the book for free. This is Brian Tiplady’s chapter: Diary design considerations: interface issues and patient acceptability