function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmed, Zubair & Sanborn, Allen F.', 2],
    ['Beuk, Paul L. Th.', 1],
    ['Boulard, Michel', 2],
    ['Hajong, Sudhanya Ray', 2],
    ['Lee, Young June', 4],
    ['Price, Benjamin Wills & Allan, Elizabeth Louise & Marathe, Kiran', 18],
    ['Sanborn, Allen F. & Phillips, Polly K. & Sites, Robert W.', 8],
    ['Wang, Xu & Wei, Cong', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);