A series of patient record cards for patients with pernicious anaemia that were treated by Wilkinson and his team throughout his professional career. Some of the notes run for many years with some patients under his care for in excess of 20 years. Each patient was allocated their own reference number beginning PA and then followed by a number. It is these numbers that have been used to order the records with Wilkinson's original divisions maintained. The records are divided into three main groups, namely PA-Alive, PA & Cancer-Mors, and PA-Mors. There are however some instances of deceased patients within the PA-alive group.
The format of the record cards is quite uniform and there are spaces to allow the insertion of the following information: name, age, sex, diagnosis, surgeon, reg. no. (i.e. patient number), occupation, address, and condition on admission. There is then room for a running series of notes with each entry dated and comments provided on the patient's condition at the time. The results of blood counts are often recorded on the reverse and other items are sometimes attached, such as autopsy reports in the case of deceased patients, correspondence from the medical almoner regarding the patient's living conditions, housing etc., and correspondence from other medical practitioners involved in the patient's care. Much of the attached correspondence is addressed to Dr Israëls rather than Wilkinson.