function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aneesh, Panakkool Thamban & Helna, Ameri Kottarathil', 2],
    ['Hadfield, Kerry A. & Bruce, Niel L. & Smit, Nico J.', 2],
    ['Hadfield, Kerry A. & Tuttle, Lillian J. & Smit, Nico J.', 2],
    ['John Hollier', 1],
    ['Martin, Melissa B. & Tuah, Alia & Muhamad, Juariah H.', 1],
    ['Ravichandran, S. & Vigneshwaran, P. & Rameshkumar, G.', 3],
    ['Saito, Nobuhiro & Yamauchi, Takeo', 1],
    ['Trilles, Jean-Paul & Justine, Jean-Lou', 5],
    ['van der Wal, Serita & Smit, Nico J. & Hadfield, Kerry A.', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);