function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hulbert, D. & Jackson, M. D. & Hood, Glen R. & Smith, J. J.', 2],
    ['Korneyev, S. V. & Smith, J. J. & Hulbert, D. L. & Frey, J. E.', 8],
    ['Korneyev, V. A. & Mishustin, R. I. & Korneyev, S. V.', 17],
    ['Kovac, D. & Kameneva, E. P. & Korneyev, V. A.', 3],
    ['Martínez-Alava, Javier O. & Serna, Francisco & Norrbom, Allen L.', 1],
    ['Mazzon, Luca & Whitmore, Daniel & Cerretti, Pierfilippo', 1],
    ['Merz, B. & Kofler, A.', 3],
    ['Namin, Saeed Mohamadzade & Korneyev, Valery A.', 4],
    ['Norrbom, Allen L. & Sutton, Bruce D. & Steck, Gary J.', 2],
    ['Rodriguez, Pedro Alexander & Norrbom, Allen L.', 6],
    ['Savaris, Marcoandre & Marinoni, Luciane & Norrbom, Allen L.', 2],
    ['Schlüsslmayr, Gerhard', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);