function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cavalleri, Adriano & Lindner, Mariana F.', 1],
    ['Dang, Li-Hong & Mound, Laurence A. & Qiao, Ge-Xia', 1],
    ['Dang, Li-Hong & Zhao, Le & Wang, Xia & Qiao, Ge-Xia', 7],
    ['Minoura, Kazushige & Masumoto, Masami', 2],
    ['Mirab-balou, M.', 1],
    ['Mound, Laurence A. & Matsunaga, Janis N.', 1],
    ['Mound, Laurence A. & Minaei, Kambiz', 8],
    ['Mound, Laurence Alfred & Walker, Annette K.', 2],
    ['Tyagi, Kaomud & Singha, Devkant & Chakraborty, Rajasree', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    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);