function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Csuzdi, Csaba & Szederjesi, Tímea & Sherlock, Emma', 11],
    ['Kutuzović, Davorka Hackenberger', 5],
    ['Marchán, Daniel Fernández & Gérard, Sylvain & Hedde, Mickaël', 1],
    ['Sekulić, Jovana & Stojanović, Mirjana & Popović, Filip', 2],
    ['Szederjesi, T. & Pop, V. V. & Csuzdi, C.', 2],
    ['Trakić, Tanja & Valchovski, Hristo & Stojanović, Mirjana', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);