function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Buffington, Matthew L.', 17],
    ['Buffington, Matthew L. & Forshage, Mattias & Liljeblad, Johan', 28],
    ['Carl M. Yoshimoto', 22],
    ['Costa Baião, Guilherme & Forshage, Mattias', 20],
    ['Ferrer-Suay, Mar & Paretas-Martínez, Jordi & Selfa, Jesús', 11],
    ['Ferrer-Suay, Mar & Selfa, Jesús & Tomanović, Željko', 13],
    ['Forshage, Mattias & Bowdrey, Jeremy & Broad, Gavin R.', 294],
    ['Mata-Casanova, Noel & Selfa, Jesús & Pujade-Villar, Juli', 30],
    ['Noort, Simon van & Buffington, Matthew L. & Forshage, Mattias', 33],
    ['Paretas-Martinez, J. & Restrepo-Ortiz, C. & Buffington, M.', 11],
    ['Paretas-Martínez, Jordi & Ferrer-Suay, Mar & Kovalev, Oleg', 10],
    ['ROS-FARRÉ, P. & PUJADE-VILLAR, J.', 64],
    ['Ros-Farré, P. & Pujade-Villar, J.', 63],
    ['Ros-Farré, Palmira & Sporrong, Michael & Ronquist, Fredrik', 12],
    ['Ward, D. F.', 10],
    ['Other (47)', 153]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=791)',
    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);