1. A study on training effect on strength per unit cross sectional area of muscle by means of ultrasound measurement;Ikai;Int Z Angew Physiol,1970
2. The effect of weight lifting exercise related to muscle fibre composition and muscle cross sectional area in humans;Dons;Eur J Appl Physiol,1979
3. A. Young, I. Hughes, P. Russell, Mj Parker, Pjr. Nichols, Measurement of quadriceps muscle wasting by ultrasonography, Rheumatol Rehabil ((in press)).
4. Percutaneous needle-biopsy in the diagnosis of muscle disorders;Edwards;Lancet,1973
5. Muscle biopsy: A modern approach;Dubowitz,1973