@article{221796,
      note = {Includes bibliographical references.},
      author = {Villiers, Francois P.R. de.},
      url = {http://digitallibrary.un.org/record/221796},
      title = {Symptoms of primary adult-type lactose maldigestion in  Tswana children /},
      recid = {221796},
      address = {1996},
}