function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ganeshalingam, Archchana & Daranagama, Dinushani A.', 5],
    ['Iliushin, Vadim A.', 1],
    ['Jarvis, Charlie', 1],
    ['Khuna, Surapong & Kumla, Jaturong & Thitla, Tanapol', 1],
    ['Spetik, Milan & Berraf-Tebbal, Akila & Gramaje, David', 1],
    ['Sun, Bing-Da & Chen, Amanda J. & Houbraken, Jos', 8],
    ['Torres-Garcia, Daniel & Gene, Josepa & Garcia, Dania', 8],
    ['Wei, Jihua & Chen, Xuexia & Ge, Yichao & Yin, Qizhao & Ma, Yihan', 1],
    ['Zhang, Hong & Wei, Tian-Peng & Mao, Yu-Tao & Ma, Ming-Xia', 1],
    ['Zhang, Zhi-Yuan & Li, Xin & Chen, Wan-Hao & Liang, Jian-Dong', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);