function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blakemore, Robert J.', 3],
    ['Christoffersen, Martin Lindsey', 4],
    ['Csuzdi, Csaba & Szederjesi, Tímea & Sherlock, Emma', 2],
    ['Hernández-García, Luis Manuel & Sousa, Sandriel Costa', 2],
    ['Kutuzović, Davorka Hackenberger', 3],
    ['Lehmitz, Ricarda & Römbke, Jörg & Jänsch, Stephan', 3],
    ['Nguyen, Tung T. & Nguyen, Anh D. & Tran, Binh T. T.', 2],
    ['Sekulić, Jovana & Stojanović, Mirjana & Popović, Filip', 3],
    ['Shekhovtsov, Sergei V. & Derzhinsky, Yevgeniy A.', 2],
    ['Stojanović, Mirjana & Milutinović, Tanja', 2],
    ['Stojanović, Mirjana & Sekulić, Jovana & Trakić, Tanja', 3],
    ['Szederjesi, Tímea & Csuzdi, Csaba', 4],
    ['Szederjesi, Tímea & Pavlíček, Tomás & Latif, Robabeh', 7],
    ['Szederjesi, Tímea & Vavoulidou, Evangelia & Chalkia, Christina', 6],
    ['Trakić, Tanja & Valchovski, Hristo & Stojanović, Mirjana', 5],
    ['Other (15)', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=69)',
    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);