CD40LG mutations in Vietnamese patients with X‐linked hyper‐IgM syndrome; catastrophic anti‐phospholipid syndrome as a new complication oleh Anh Nguyen Lien Phan, Thuy Thi Thanh Pham, Xinh Thi Phan, Nghia Huynh, Tuan Minh Nguyen, Cuc Tran Thu Cao, Duong Thuy Nguyen, Khanh Thi Xuan Luong, Tam Thi Minh Nguyen, Anh Ngoc Kim Tran, Linh Thi Truc Pham, Vy Vuong Thao Nguyen, Sigrid Swagemakers, Chi‐Bao Bui, Petrus Martinus Van Hagen