function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almeida, Alexandre Oliveira De & Guerrazzi, Maria Cec Lia', 1],
    ['Chuang, C. T. N. & Ng, Peter K. L.', 2],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['D., Guinot & de, Mazancourt V.', 2],
    ['Devi, S. Suvarna & Mendoza, Jose C. E. & Ravinesh, R.', 1],
    ['Husana, Daniel Edison M. & Kase, Tomoki', 2],
    ['Kulabtong, Sitthi & Kunlapapuk, S. & Sottiyothin, S.', 1],
    ['Naderloo, Reza & Türkay, Michael', 1],
    ['Naruse, Tohru & Mendoza, Jose Christopher E. & Ng, Peter K. L.', 2],
    ['Poore, Gary C. B. & Guinot, Danièle & Komai, Tomoyuki', 1],
    ['Rahayu, Dwi Listyo & Nugroho, Dharma Arif', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);