Sciatica:Which Intervention?
BMJ 319:302-303, Samanta,A.&Beardsley,J., 1999
Infection of Collagenase in the Treatment of Herniated Lumbar Disk
JAMA 245:730-732, Sussman,B.J.,et al, 1981
Treatment of Herniated Lumbar Disk Syndrome With Chymopapain
JAMA 243:2043-2048, Javid,M.J., 1980