function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Erman, Orhan & Gülle, Pinar & Özkan, Muhlis & Candoğan, Hülya', 10],
    ['Gerecke, Reinhard', 30],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 43],
    ['Pesic, Vladimir & Smit, Harry & Datry, Thibault', 16],
    ['Pešić, Vladimir', 33],
    ['Pešić, Vladimir & Bańkowska, Aleksandra & Goldschmidt, Tom', 14],
    ['Pešić, Vladimir & Chatterjee, Tapas & Bordoloi, Sabitry', 18],
    ['Pešić, Vladimir & Smit, Harry & Saboori, Alireza', 19],
    ['Radwell, Andrea J. & Smith, Ian M.', 25],
    ['Smit, H.', 31],
    ['Smit, H. & Gerecke, R.', 41],
    ['Smit, Harry', 86],
    ['Smit, Harry & Pešić, Vladimir', 53],
    ['Smith, Ian M. & Cook, David R. & Gerecke, Reinhard', 26],
    ['Tuzovskij, Petr V.', 10],
    ['Other (30)', 87]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=542)',
    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);