function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broad, Gavin R.', 34],
    ['Cameron, P.', 2],
    ['FERNÁNDEZ-TRIANA, JOSÉ L.', 3],
    ['Fabricius, Johann Christian', 3],
    ['Gadallah, N. S. & Ahmed, R. S. & Heneidy, A. H. El-', 3],
    ['Johansson, Niklas', 11],
    ['Johansson, Niklas & Ameri, Ali & Riedel, Matthias', 33],
    ['Johansson, Niklas & Cederberg, Björn', 41],
    ['Kolarov, J.', 2],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 10],
    ['Riedel, Matthias & Diller, Erich & Japoshvili, George', 4],
    ['Schwarzfeld, Marla D. & Sperling, Felix A. H.', 7],
    ['Shimizu, So & Broad, Gavin R.', 3],
    ['Smith, Frederick', 3],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 4],
    ['Other (8)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=172)',
    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);