function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aliyev, Azer & Maharramova, Sheyda', 3],
    ['Araujo, Rodrigo O. & Padua, Diego G. & Jaramillo, Jorge', 6],
    ['Broad, Gavin R.', 20],
    ['Choi, Jin-Kyung & Kolarov, Janko & Jeong, Jong-Chul', 21],
    ['Khalaim, Andrey I. & Ruíz-Cancino, Enrique', 5],
    ['Kolarov, J.', 14],
    ['Loffredo, Ana Paula da Silva & Penteado-Dias, Angelica Maria', 2],
    ['Matsumoto, Rikio', 3],
    ['Pham, Nhi Thi & Broad, Gavin R. & Zwakhals, Kees', 3],
    ['Pádua, Diego G. & Fernandes, Daniell R. R. & Araujo, Rodrigo O.', 3],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 10],
    ['Sheng, Mao-Ling & Lü, Jun & Liao, Cheng-Jia & Li, Tao', 3],
    ['Varga, O.', 18],
    ['Varga, Oleksandr', 21],
    ['Çoruh, S. & Özbek, H.', 3],
    ['Other (7)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=143)',
    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);