H. Apfelbach

Spontaneous healing of spondylolysis of the fifth lumbar vertebra. Case report.

L. Love, S. E. Rabushka, H. Apfelbach, 1973, Clinical orthopaedics and related research.

Chemonucleolysis in the treatment of low back pain and sciatica.

R. D. Ray, H. Apfelbach, R. Jacobs, 1975, The Surgical clinics of North America.

Four brief reports on long-term results of intradiscal chymopapain.

J. Simmons, F. Dubuc, M. Javid, 1986, Clinical orthopaedics and related research.