function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['G, Junchao Wan & Gao, Caixia & Yang, Ding', 3],
    ['Gao, Caixia & Yang, Ding', 16],
    ['Gao, Xuefeng & Shi, Li', 12],
    ['Li, Wen Liang & Yang, Ding', 4],
    ['Li, Wenliang & Yang, Ding', 16],
    ['Merz, B. & Kofler, A.', 2],
    ['Papp, L. & Gaimari, S. D.', 2],
    ['Shen, Rongrong & Shi, Li & Li, Wenliang & Wang, Junchao', 21],
    ['Shi, Li & Gaimari, Stephen D. & Yang, Ding', 11],
    ['Shi, Li & Gao, Xue Feng & Shen, Rong Rong', 5],
    ['Shi, Li & Wang, Jun Chao & Yang, Ding', 10],
    ['Shi, Li & Yang, Ding', 77],
    ['Wen-Liang, Li & Yang, Ding', 6],
    ['You, Pengyan & Chen, Xulong & Li, Wenliang', 5],
    ['Zhang, Mengjing & Gao, Xuefeng & Shi, Li', 5],
    ['Other (4)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=201)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);