function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Huang, Jianhua & Fu, Peng & Huang, Yuan', 1],
    ['Mao, Ben-Yong & Li, Miao', 5],
    ['Mao, Ben-Yong & Niu, Yao & Zheng, Zhe-Min & Scott, Matthew B.', 7],
    ['Mao, Ben-Yong & Ren, Guo-Dong & Ou, Xiao-Hong', 2],
    ['Roy, Roger', 2],
    ['Storozhenko, S. Yu.', 1],
    ['Yin, Zhi-Long & Mao, Ben-Yong', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);