function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fartyal, Rajendra S. & Gao, Jianjun & Toda, Masanori J.', 2],
    ['Jiao, Run-Jie & Bai, Li-Hong & Gao, Jian-Jun', 3],
    ['Li, Nan-Nan & Toda, Masanori J. & Fu, Zhao & Chen, Ji-Min', 4],
    ['Okada, Toyohi', 2],
    ['Okada, Toyohi & Yafuso, Masako', 1],
    ['Takano, Kohei Takenaka & Gao, Jian-Jun & Hu, Yao-Guang', 21],
    ['Xue, Xian-Ci & Jiao, Run-Jie & Yu, Li & Gao, Jian-Jun', 1],
    ['Zhang, Guang & Gao, Jian-Jun & Takano, Kohei Takenaka', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    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);