This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Mallory weiss syndrome often occurs in-a) Patient who abuse analgesicsb) Childrenc) pregnant femalesd) Patients with hiatus hernia 
Select and explain. 
A. acd, B. ad, C. bc, D. bde
A: acd
Answer: A: acd 
Explanation: None