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2. Becker, N L (1989). ‘Specific running injuries and complaints related to excessive loads — medical criteria of the running shoe’ in: Segesser, B and Pforringer, W (eds) op cit.
3. ‘Etiology and management of hallux valgus in athletes’;Berman;Physician and Sportsmedicine,1982
4. ‘The relationship of abnormal pronation to chondromalacia of the patella in distance runners’;Buchbinder;Journal of the American Podiatry Association,1979
5. Cavanagh, P R (1989). ‘The biomechanics of running and running shoe problems’ in: Segesser, B and Pforringer, W (eds) op cit.