What is the recommended period for taking a post-coital contraceptive pill after unprotected intercourse?

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 194-196
E6 Gynecology Williams p. 137-161
E6 Medicine Harrison 22e Part 2 p. 1058-1060
Practise the full DSSSB -28 August 2019 (Shift-2)
Attempt every question from this paper in a timed mock, then review the full solution for each one.