function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Das, Apurva & Singh, Navneet', 11],
    ['Donner, Hans & Wilkinson, Christopher', 14],
    ['Navickaitė, Asta & Diškus, Arūnas & Stonis, Jonas R.', 40],
    ['Nieukerken, Erik J. van & Gilrein, Daniel Owen', 3],
    ['Remeikis, Andrius & Stonis, Jonas R.', 3],
    ['Rocienė, Agnė & Stonis, Jonas R.', 7],
    ['Stonis, Jonas R. & Diškus, Arūnas & Fernández-Alonso, José L.', 4],
    ['Stonis, Jonas R. & Diškus, Arūnas & Remeikis, Andrius', 164],
    ['Stonis, Jonas R. & Remeikis, Andrius', 4],
    ['Stonis, Jonas R. & Remeikis, Andrius & Davis, Donald R.', 11],
    ['Stonis, Jonas R. & Remeikis, Andrius & Diškus, Arūnas', 30],
    ['Stonis, Jonas R. & Rocienė, Agnė', 35],
    ['van Nieukerken, Erik J. & Doorenweerd, Camiel & Nishida, Kenji', 5],
    ['van Nieukerken, Erik J. & Laštůvka, Aleš & Laštůvka, Zdenĕk', 72],
    ['van Nieukerken, Erik J. & Liu, Youqiao', 4],
    ['Other (7)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=416)',
    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);