function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Breure, Abraham S. H.', 1],
    ['Budha, Prem B. & Naggs, Fred & Backeljau, Thierry', 12],
    ['Campbell, David C. & Clark, Stephanie A. & Lydeard, Charles', 2],
    ['Pall-Gergely, Barna & Sajan, Sheikh & Tripathy, Basudev', 371]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=386)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 4, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);