Journal of the Medical Association of Thailand Vol 93, No 12:DECEMBER 2010 (SUPPL.7) 0125-2208 93 12 2010 Dec Primary Muscle Diseases in Thammasat University Hospital: Muscle Biopsy Study of 12 Cases 236 EN Jutatip Kintarak Tumtip Sangruchi Teerin Liewluck Kongkiat Kulkantrakorn Sombat Muengtaweepongsa Original Article Muscle biopsy Myopathy Muscular dystrophy Molecular genetic analysis