Comparing a Guideline-Based Mobile Health Intervention Versus Usual Care for High-Risk Adolescents With Asthma: Protocol of a Randomized Controlled Trial - Tamara T Perry; Jessica H Turner; Ariel Berlinski; Larry A Simmons; Rita H Brown; Kaymon Neal; Sarah A Marshall; Xing He; Simon Chung; Andrew Brown; Horace J Spencer 3rd; Jiang Bian (JMIR Research Protocols, 2025)