function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Hui-Ming & Zheng, Chang-Bin & Jiang, Xuan-Kong', 2],
    ['Golovatch, S. I.', 7],
    ['Golovatch, Sergei I. & Mikhaljova, Elena V. & Chang, Hsueh-Wen', 5],
    ['Liu, Weixin & Golovatch, Sergei', 12],
    ['Liu, Weixin & Huo, Qingbo', 2],
    ['M, E L E N A V. & Va, I K H A L J O & Lim, Kil-Young', 8],
    ['Mikhaljova, E. V. & Lim, K. - Y.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    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);