function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agnèse, Jean-François & Chirio, Laurent & Legros, Olivier', 7],
    ['Ahl, E.', 2],
    ['Berkenkamp, H. O.', 2],
    ['Huber, Jean H.', 4],
    ['Huber, Jean H. & Radda, A. C.', 5],
    ['Huber, Jean H. & Scheel, J. J.', 2],
    ['Legros, O. & Zentz, F.', 2],
    ['Legros, O. & Zentz, F. & Agnèse, J. - F.', 2],
    ['Meinken, H.', 2],
    ['Myers, G. S.', 2],
    ['Paul V. Loiselle', 4],
    ['Radda, A. C.', 3],
    ['Radda, A. C. & Huber, Jean H.', 6],
    ['Scheel, J. J.', 6],
    ['Van Der Zee, Jouke R. & Walsh, Gina & Boukaka Mikembi, Valdie N.', 3],
    ['Other (18)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);