Severe pertussis complicated by pulmonary hypertension in a Moroccan infant: a case report. - Belhakim, Mehdi; El jaouhahri, Zineb; Boudar, Aicha; Benaddi, Loubna; Naanani, Karima; Habbal, Rachida; Chlilek, Abdelaziz (Journal of Medical Case Reports, 2025)