function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barševskis, Arvīds & Janovska, Marina & Aksjuta, Kristīna', 5],
    ['Bouchard, Patrice & Bousquet, Yves & Davies, Anthony E.', 1],
    ['Broun, Thomas', 1],
    ['Champion, George Charles', 4],
    ['F, Hannes & F, Hannes', 2],
    ['Fabricius, Johann Christian', 2],
    ['Japarashvili, Shota & Bulbulashvili, Natalia & Seropian, Armen', 1],
    ['Jäger, O. & Pütz, A.', 7],
    ['Kitano, Takanobu Dr. & Matsumoto, Masamichi', 1],
    ['Kitano, Takanobu Dr. & Pütz, Andreas & Sakai, Masahiro', 1],
    ['Kitano, Takanobu Dr. & Sakai, Masahiro', 6],
    ['Kugelann, Johann Gottlieb', 3],
    ['Lawrence, John F. & Slipinski, Adam & Jäger, Olaf', 9],
    ['Ruchin, Alexaner B. & Egorov, Leonid V. & Alekseev, Sergei K.', 2],
    ['Takizawa, Haruo & Nakane, Takehiko', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    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);