About the Authors

Hanna Engelberg-Kulka

To whom correspondence should be addressed. E-mail: hanita@cc.huji.ac.il

Shahar Amitai
Ilana Kolodkin-Gal
Ronen Hazan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

SA, IKG, and RH conceived, designed, and performed the experiments. RH designed the drawings. HEK wrote the paper.