1
by Gartlehner, Gerald
Published 2007
RTI-UNC Evidence-based Practice Center, Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
... infrequent stools, difficult stool passage, or both over a time period of at least 12 weeks. In this report...

2
by Gartlehner, Gerald
Published 2007
RTI-UNC Evidence-based Practice Center, Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
... infrequent stools, difficult stool passage, or both over a time period of at least 12 weeks. In this report...