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  Indian J Med Microbiol
 

Figire 3: (a): Application of central postero-anterior pressure and assessment of joint play (without spinal muscle contraction); (b): Application of central postero-anterior pressure and assessment of joint play (with spinal muscle contraction- note the lifted knees indicated by an arrow).

Figire 3: (a): Application of central postero-anterior pressure and assessment of joint play (without spinal muscle contraction); (b): Application of central postero-anterior pressure and assessment of joint play (with spinal muscle contraction- note the lifted knees indicated by an arrow).