function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Balke, M. & Hendrich, L. & Mazzoldi, P. & Biström, O.', 2],
    ['Bistroem, Olof & Nilsson, Anders N. & Bergsten, Johannes', 106],
    ['Budaev, F. A. & Eremeeva, N. I. & Efimov, D. A.', 3],
    ['Darilmaz, Mustafa C. & Kiyak, Suat', 3],
    ['Hájek, Jiří', 5],
    ['Hájek, Jiří & Brancucci, Michel', 20],
    ['Hájek, Jiří & Reiter, Antonín', 7],
    ['Hájek, Jiří & Šťastný, Jaroslav', 10],
    ['Keller, Oliver & Schnepp, Kyle E. & Ashman, Krystal L.', 13],
    ['Luna-Luna, Alba Magali & Martins, Caleb Califre', 2],
    ['Manuel, Michaël & Ramahandrison, Andriamirado T.', 7],
    ['Megna, Yoandri S. & Deler-Hernández, Albert', 9],
    ['Michat, Mariano C.', 3],
    ['Perissinotto, Renzo & Bird, Matthew S. & Bilton, David T.', 4],
    ['Ramahandrison, Andriamirado Tahina & Rakouth, Bakolimalala', 11],
    ['Other (4)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=210)',
    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);