Breast-feeding promotion in hospitals and prospective breast-feeding rates during the first year of life in two national surveys 1997-1998 and 2017-2019 in Germany. - Hockamp, Nele; Burak, Constanze; Sievers, Erika; Rudloff, Silvia; Burmann, Anja; Thinnes, Merlin; Zahn, Johanna; Lücke, Thomas; Kersting, Mathilde (Public Health Nutrition, 2021)