function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akrami, Mohammad Ali', 4],
    ['Bayartogtokh, Badamdorj', 2],
    ['Beck, L. & Woas, S.', 3],
    ['Behan-Pelletier, Valerie M.', 6],
    ['Behan-Pelletier, Valerie M. & Lindo, Zoë', 7],
    ['Bolger, Thomas', 1],
    ['ErmilovK, Sergey G. & Khaustov K, Alexander A. & JoharchiK, Omid', 1],
    ['Forsslund, K. - H.', 5],
    ['Hushtan, Habriel H. & Hushtan, Kateryna V. & Glotov, Sergii V.', 1],
    ['Kun, Marcelo E. & Martínez, Pablo A. & Gonzalez, Alda', 1],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 2],
    ['Murvanidze, Maka & Mumladze, Levan', 4],
    ['Schatz, Heinrich & Fortini, Lorenzo & Fusco, Tommaso', 2],
    ['Toluk, Ayşe & Ayyildiz, Nusret & Subías, Luis S.', 1],
    ['Weigmann, G. & Miko, L.', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);