function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Calabon, Mark S. & Jones, E. B. Gareth & Pang, Ka-Lai', 2],
    ['Chun-Sheng, Long & You-Peng, Wu & Xu, Zhang & Yan, Lin', 1],
    ['Gao, Ying & Zhong, Tingfang & Bhat, Jayarama D.', 2],
    ['Kularathnage, Nuwan D. & Wanasinghe, Dhanushka N.', 2],
    ['Li, Xiao-Hong & Liu, Yu-Lin & Song, Hai-Yan & Hu, Dian-Ming', 1],
    ['Naziazeno, Leticia Muxfeldt & Aptroot, André', 2],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 35]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=45)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);