Breastfeeding difficulties in the first 6 weeks postpartum among mothers with chronic conditions: a latent class analysis. - Scime, Natalie V.; Metcalfe, Amy; Nettel-Aguirre, Alberto; Nerenberg, Kara; Seow, Cynthia H.; Tough, Suzanne C.; Chaput, Kathleen H. (BMC Pregnancy & Childbirth, 2023)