TY - GEN AU - van Beijsterveldt,C E M Toos AU - Hoekstra,Chantal AU - Schats,Roel AU - Montgomery,Grant W AU - Willemsen,Gonneke AU - Boomsma,Dorret I TI - Mode of conception of twin pregnancies: willingness to reply to survey items and comparison of survey data to hospital records SN - 1832-4274 PY - 2008///1113 KW - Data Collection KW - Female KW - Fertilization KW - Hospital Records KW - Humans KW - Infant KW - Netherlands KW - Pregnancy KW - Pregnancy, Multiple KW - physiology KW - Registries KW - Reproductive Techniques, Assisted KW - Surveys and Questionnaires KW - Twins N1 - Publication Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Twin Study UR - https://doi.org/10.1375/twin.11.3.349 ER -