function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beyarslan, A. & Yurtcan, M. & Çetin, Ö. & Aydogdu, M.', 2],
    ['Broad, Gavin R.', 10],
    ['Gauld, Ian D. & Fernández-Triana, José L.', 2],
    ['Ghahari, H. & Jussila, R.', 7],
    ['Ghahari, H. & Jussila, R. & I, Northwestern', 1],
    ['Ghahari, H. & Jussila, R. & Šedivý, J.', 3],
    ['Ghahari, Hassan & Jussila, Reijo', 1],
    ['González-Moreno, Alejandra & Bordera, Santiago', 7],
    ['Horstmann, K.', 1],
    ['Kolarov, J.', 10],
    ['Kolarov, Janko', 11],
    ['Mohammadi, Abbas & Salah-A & Lotfalizadeh, Hosseinali', 1],
    ['Riedel, Matthias & Ameri, Ali & Talebi, Ali Asghar', 3],
    ['Rousse, Pascal & Villemant, Claire', 7],
    ['Rousse, Pascal & Villemant, Claire & Seyrig, Andre', 7],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=75)',
    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);