function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andersen, Michael J. & Fatdal, Lilly & Mauck III, William M.', 1],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 2],
    ['Boie, Friedrich', 2],
    ['Callaghan, Corey T. & Kekeubata, Esau & Waneagea, Jackson', 1],
    ['Cibois, Alice & Vallotton, Laurent & Othman, Nagwa', 1],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['McAllan, Ian A. W.', 2],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 1],
    ['Vieillot, Louis Pierre', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);