319 In what month and year was the sterilization performed?
319A Since what month and year have you been using (CURRENT METHOD) without stopping?
PROBE: For how long have you been using (CURRENT METHOD) now without stopping?

308A) Since what month and year have you been using (CURRENT METHOD) without stopping?

PROBE: For how long have you been using (CURRENT METHOD) now without stopping?

309. Since what month and year have you been using (CURRENT METHOD) without stopping?

PROBE: For how long have you been using (CURRENT METHOD) now without stopping?