TY - JOUR T1 - Precautions after missed contraceptive pills JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 226 LP - 227 VL - 38 IS - 310 AU - D. Metson Y1 - 1988/05/01 UR - http://bjgp.org/content/38/310/226.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -