TY - JOUR T1 - Lactulose versus Polyethylene Glycol for Chronic Constipation JO - Cochrane Database of Systematic Reviews UR - https://doi.org/10.1002/14651858.cd007570.pub2 PY - 2010/07/07 AU - Lee-Robichaud H AU - Thomas K AU - Morgan J AU - Nelson RL ED - DO - DOI: 10.1002/14651858.cd007570.pub2 PB - Wiley Y2 - 2025/12/21 ER -