Mobile phone follow-up of subjects included in a prospective cohort study: unexpected difficulties.

Pitrou, Isabelle

Mobile phone follow-up of subjects included in a prospective cohort study: unexpected difficulties. [electronic resource] - European journal of epidemiology 2007 - 411-2 p. digital

Publication Type: Letter

0393-2990

10.1007/s10654-007-9130-5 doi


Cell Phone
Data Collection--methods
Humans
Prospective Studies
Telephone