Ultra-low-dose estriol and Lactobacillus acidophilus vaginal tablets (Gynoflor®) for vaginal atrophy in postmenopausal breast cancer patients on aromatase inhibitors: pharmacokinetic, safety, and efficacy phase I clinical studyGilbert Donders, Stefan Buchholz, M. Moegele et al.|Breast Cancer Research and Treatment|2014Cited by 128