function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asadi, Mahdieh & Pešić, Vladimir & Etemadi, Isa', 2],
    ['Erman, Orhan & Pešić, Vladimir & Esen, Yunus & Özkan, Muhlis', 5],
    ['Gu, Xin-Yao & Jia, Lan & Jin, Dao-Chao & Guo, Jian-Jun', 3],
    ['Gu, Xinyao & Jin, Daochao & Guo, Jianjun', 2],
    ['Gu, Xinyao & Jin, Daochao & Yi, Tianci & Guo, Jianjun', 3],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 22],
    ['Pesic, Vladimir & Saboori, Alireza', 4],
    ['Pesic, Vladimir & Smit, Harry', 18],
    ['Pešic, V. & Smit, H.', 2],
    ['Pešić, Vladimir & Bańkowska, Aleksandra & Goldschmidt, Tom', 2],
    ['Pešić, Vladimir & Chatterjee, Tapas & Bordoloi, Sabitry', 13],
    ['Pešić, Vladimir & Smit, Harry', 49],
    ['Pešić, Vladimir & Smit, Harry & Mary, Nathalie', 2],
    ['Pešić, Vladimir & Smit, Harry & Saboori, Alireza', 9],
    ['Smit, Harry & Pesic, Vladimir & Mary-Sasal, Nathalie', 2],
    ['Other (18)', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=156)',
    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);