DopFone: Doppler-Based Fetal Heart Rate Estimation Using Commodity Smartphones. - Poojita Garg; Mingzhuo Ma; Hayley Jane MacKinnon; Michael Richley; Vikram Iyer; Shwetak N. Patel; Alexander Travis Adams (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2025)