[Lactulose plus live binary Bacillus subtilis in the treatment of elders with functional constipation].
Zhonghua Yi Xue Za Zhi. 2012 Nov 13;92(42):2961-4. doi: 10.3760/cma.j.issn.0376-2491.2012.42.003.
Zhonghua Yi Xue Za Zhi. 2012.
PMID: 23328284
Clinical Trial.
Chinese.