Taw qhia ntawm lub duav yug txoj siv
Kev txhawb nqa lub duav, tseem hu ua lub duav siv, lub duav txhawb nqa, kev txhawb nqa lumbar, lub duav ncig, raws li cov iav tiv thaiv, feem ntau yog siv rau kev kho mob ntawm cov neeg mob lumbar qaum kab mob thiab kev cob qhia kev kho mob rau cov neeg mob tom qab lumbar spine ...
saib kom meej