function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Diškus, Arūnas & Stonis, Jonas R.', 1],
    ['Jonas R. Stonis & Arūnas Diškus & Fernando Carvalho Filho', 12],
    ['Landry, Bernard & Roque-Albelo, Lazaro', 2],
    ['Stonis, Jonas R. & Diskus, Arūnas & Remeikis, Andrius', 3],
    ['Stonis, Jonas R. & Diškus, Arūnas & Remeikis, Andrius', 17],
    ['Stonis, Jonas R. & Diškus, Arūnas & Vargas, Sergio A.', 2],
    ['Vargas, Hector A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);