Date trial author contacted	Date trial author replied	Trial author asked for additional information [short summary]	Trial author provided data [short summary]
Umpierrez 2004a	2 April 2015	No reply	N/A	N/A
Umpierrez 2004b	2 April 2015	No reply	N/A	N/A
Della Manna 2005	2 April 2015	No reply	N/A	N/A
Ersöz 2006	2 April 2015	No reply	N/A	N/A
Karoli 2011	2 April 2015	No reply	N/A	N/A
El Ebrashy 2010	2 April 2015	No reply	N/A	N/A
Baldwin 2009	2 April 2015	No reply	N/A	N/A
N/A: not applicable