function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bello, Giambattista', 10],
    ['Bello, Giambattista & Salman, Alp', 2],
    ['Berry, Samuel Stillman', 3],
    ['Kirk, Thomas W.', 1],
    ['Leach, William Elford', 1],
    ['Lu, C. C. & Boucher-Rodoni, R.', 2],
    ['Reid, Amanda L. & Strugnell, Jan M.', 12],
    ['Sanchez, Gustavo & Jolly, Jeffrey & Reid, Amanda', 3],
    ['Sasaki, Madoka', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    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);