N. Field

Portfolio‐based learning: continuing medical education for general practitioners — a mid‐point evaluation

N. Mathers, A. Howe, M. Challis, 1997, Medical education.

Portfolios in continuing medical education – effective and efficient?

N. Mathers, A. Howe, N J Mathers, 1999, Medical education.

Mandatory continuing professional education: do we need it?

N. Field, 2004 .