function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Ben-Tuvia, Adam', 1],
    ['Böhlke, James E.', 1],
    ['Ebersole, Jun A. & Cicimurri, David J. & Stringer, Gary L.', 2],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 2],
    ['Goren, Menachem & Galil, Bella S.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Lin, Chien-Hsiang & Nolf, Dirk', 1],
    ['Osório, B.', 1],
    ['Pellegrin, J.', 1],
    ['Poey, F.', 1],
    ['Poll, M.', 1],
    ['Rosenblatt, Richard H. & Rubinoff, I.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);