function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dejean, Pierre François Marie Auguste', 1],
    ['García-Ochaeta, José Francisco & Háva, Jiří', 1],
    ['Germann, Christoph & Schneppat, Ulrich & Herger, Peter', 1],
    ['Ghahari, Hassan & Háva, Jirí', 1],
    ['Háva, J. & Matsumoto, K.', 5],
    ['Háva, Jiří', 2],
    ['Háva, Jiří & Baňař, Petr', 2],
    ['Háva, Jiří & Herrmann, Andreas', 1],
    ['Háva, Jiří & Kadej, Marcin', 7],
    ['Háva, Jiří & Trýzna, Miloš', 3],
    ['Kadej, Marcin & Háva, Jiří', 1],
    ['Majka, Christopher G.', 3],
    ['Nakládal, Oto & Háva, Jiří', 1],
    ['Nardi, Gianluca & Hava, Jiri', 2],
    ['Turienzo, Paola & Iorio, Osvaldo Di', 5],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    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);