function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akrami, Mohammad Ali', 1],
    ['Ermilov K, Sergey G. & Frolov K, Andrey V.', 2],
    ['Ermilov, Sergey G. & Abramov, Vladimir V.', 2],
    ['Ermilov, Sergey G. & Frolov, Andrey V.', 1],
    ['Gomez-PamiesK, Diego Fernando & MartinezK, Pablo Antonio', 1],
    ['Nakamura, Y. - N. & Hashimoto, S. & Nishi, Y. & Nakamura, Y.', 2],
    ['Oliveira, Anibal R. & Argolo, Poliane S. & De, Gilberto J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    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);