function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 72],
    ['Hellenthal, Ronald A. & Price, Roger D.', 19],
    ['Ilieva, Mihaela', 76],
    ['Kolencik, Stanislav & Sychra, Oldrich & Papousek, Ivo', 20],
    ['Kounek, Filip & Sychra, Oldrich & Capek, Miroslav', 29],
    ['Literak, Ivan', 11],
    ['Naz, Saima & Najer, Tomas & Gustafsson, Daniel R.', 44],
    ['Ošlejšková, Lucie & Krištofík, Ján & Trnka, Alfréd', 99],
    ['Palma, Ricardo L. & Peck, Stewart B.', 36],
    ['Price, Roger D. & Dalgleish, Robert C.', 29],
    ['Price, Roger D. & Hellenthal, Ronald A. & Dalgleish, Robert C.', 20],
    ['Price, Roger D. & Hellenthal, Ronald A. & Weckstein, Jason D.', 13],
    ['Price, Roger D. & Johnson, Kevin P. & Dalgleish, Robert C.', 20],
    ['Sychra, Oldřich & Kounek, Filip & Papoušek, Ivo', 15],
    ['Sánchez-Montes, Sokani & Colunga-Salas, Pablo', 69],
    ['Other (46)', 156]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=728)',
    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);