function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Di, Zhi-Yong & Zhu, Ming-Sheng', 2],
    ['Di, Zhiyong & He, Yawen & Wu, Yingliang & Cao, Zhijian', 1],
    ['Di, Zhiyong & Xu, Xiaobo & Cao, Zhijian & Wu, Yingliang', 11],
    ['Kovařík, František', 12],
    ['Kovařík, František & Lowe, Graeme & Stockmann, Mark', 21],
    ['Lv, He-Yu & Di, Zhi-Yong', 1],
    ['Lv, He-Yu & Lourenço, Wilson R. & Di, Zhi-Yong', 1],
    ['Lv, Heyu & Di, Zhiyong', 4],
    ['Mirza, Zeeshan A. & Gowande, Gaurang', 1],
    ['Monod, Lionel & Duperre, Nadine & Harms, Danilo', 5],
    ['Nawanetiwong, Wasin & Kosulic, Ondrej & Warrit, Natapot', 1],
    ['Sulakhe, Shauri & Deshpande, Shubhankar & Dandekar, Nikhil', 9],
    ['Tang, Victoria', 7],
    ['Yin, Shijin & Zhang, Yunfeng & Pan, Zhaohui & Li, Shaobin', 1],
    ['Zambre, Amod & Sanap, Rajesh V. & Mirza, Zeeshan A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=78)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);