function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguiar, Alexandre P. & Jennings, John T.', 7],
    ['Binoy, C. & Achterberg, C. Van & Kumar, P. Girish & Santhosh, S.', 7],
    ['Chen, Hua-yan & Achterberg, Cornelis van & Xu, Zai-fu', 2],
    ['Hong, Chun-dan & van Achterberg, Cornelis & Xu, Zai-fu', 6],
    ['Ramage, Thibault & Jouault, Corentin', 2],
    ['Tan, Jiang-Li & Achterberg, Cornelis Van & Tan, Qing-Qing', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);