Acute lymphoblastic leukemia in a child with a de novo germline gnb1 mutation. Issue 2 (19th October 2016) - Brett, Maggie; Lai, Angeline H. M.; Ting, Teck‐Wah; Tan, Ah‐Moy; Foo, Roger; Jamuar, Saumya; Tan, Ene‐Choo