function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anweiler, Gary G.', 19],
    ['Behounek, G. & Han, H. L. & Kononenko, V. S.', 34],
    ['Behounek, G. & Kononenko, V. S.', 1],
    ['Behounek, Gottfried & Han, Hui-Lin & Kononenko, Vladimir', 15],
    ['Behounek, Gottfried & Kononenko, Vladimir', 10],
    ['Martinez, Jose I. & Schmidt, B. Christian', 2],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 1],
    ['Schmidt, B. Christian & Anweiler, Gary G.', 1],
    ['Schmidt, Christian & Anweiler, Gary', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    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);