function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['De Zoysa, H. K. S. & Nguyen, Anh D. & Wickramasinghe, S.', 103],
    ['Enghoff, Henrik', 293],
    ['Golovatch, Sergei I. & Wesener, Thomas', 391],
    ['Hollier, John & Stöckli, Eduard & Wesener, Thomas', 345],
    ['Iniesta, Luiz Felipe Moretti & Bouzan, Rodrigo Salvador', 94],
    ['John Hollier & Edmund Schiller & Nesrine Akkari', 117],
    ['Kime, Richard Desmond & Enghoff, Henrik', 1159],
    ['Likhitrakarn, Natdanai & Golovatch, Sergei I. & Panha, Somsak', 189],
    ['Mesibov, Robert', 298],
    ['Mikhaljova, Elena V.', 141],
    ['Recuero, Ernesto & Sánchez-Vialas, Alberto', 96],
    ['Shear, William A.', 152],
    ['Shelley, Rowland M. & Golovatch, Sergei I.', 99],
    ['Stoev, Pavel & Sierwald, Petra & Billey, Amber', 179],
    ['Wesener, Thomas', 117],
    ['Other (434)', 4214]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=7987)',
    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);