- Correspondence to Dr Rosemary A Fisher, Gestational Trophoblastic Disease Group, Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Campus, Du Cane Road, London W12 0NN, UK;
- Received November 2, 2011
- Revised December 27, 2011
- Accepted January 3, 2012
- First published February 7, 2012.
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