The synthesis of folic acid, multiply labelled with stable isotopes, for bioavailability studies in human nutrition.

Maunder P., Mallet A. I., Aaqib Razzaque M., Ridge B., Vahteristo L., Witthoft C., Finglas P. M., Mellon F. A.. (1999)

Journal of the Chemical Society Perkin Transactions, 1, 1311-1323