function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bolzern, Angelo & Burckhardt, Daniel & Hänggi, Ambros', 84],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 15],
    ['Chen, Lu & Li, Shuqiang & Zhao, Zhe', 12],
    ['Chen, Lu & Zhao, Zhe & Li, Shuqiang', 23],
    ['Dean, David Allen', 12],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 28],
    ['Forster, Raymond Robert & Wilton, Cecil Louis', 26],
    ['Kaya, Rahsen S. & Kunt, Kadir B. & Marusik, Yuri M.', 24],
    ['Li, Bing & Zhao, Zhe & Zhang, Chuntian & Li, Shuqiang', 25],
    ['Liu, Jie & Li, Shuqiang & Pham, Dinh-Sac', 27],
    ['Maya-Morales, Julieta & Jiménez, María Luisa', 62],
    ['WANG, XIN-PING', 26],
    ['Wang, XIN-PING & Griswold, CHARLES E. & Miller, JEREMY A.', 60],
    ['Zamani, Alireza & Marusik, Yuri M.', 26],
    ['Zhang, Xiaoqing & Zhao, Zhe & Zheng, Guo & Li, Shuqiang', 20],
    ['Other (72)', 263]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=733)',
    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);