When it comes to getting ahead in their careers on Wall Street, women need to make sure they get credit for their work, says Heidi Miller, the former head of JP Morgan's international business line.

When Miller was just starting to work for current JP Morgan chief executive Jamie Dimon 20 years ago, she was crafting a presentation to submit to the board. Dimon said he would cover it and she let him handle it. But when she arrived into work on Monday, she discovered to her fury that a colleague who hadn't done the same work as she had had instead given the presentation.