[PDF] Primary Health Care : Theory and Practice eBook. ___ Trish Greenhalgh is one of the international stars of general practice and a very clever thinker. This new book is a wonderful resource for primary health care "Trish Greenhalgh is one of the international stars of general practice and a very clever thinker. This new book is a wonderful resource for primary health care and general practice. Every general practice registrar should read this book and so should every general practice teacher and primary care researcher. Primary Health Care: Theory and Practice. General practitioners and other primary care professionals have a leading role in contemporary health care, which Trisha Greenhalgh explores in this highly praised new text. This new book is a wonderful resource for primary health care and general practice. Every general practice registrar should read this book and so should every general practice teacher and primary care researcher." This important new book one of primary care's most accomplished authors sets out clearly the academic basis for further developments in primary health care.